Alfonso Ribeiro injured during 'DWTS' rehearsal, will he miss the semi-finals?

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Alfonso Ribeiro on 'Dancing With the Stars'
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Alfonso Ribeiro injured during 'DWTS' rehearsal, will he miss the semi-finals?
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909'  (Photo by Adam Taylor/ABC via Getty Images) ALFONSO RIBEIRO, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1909'  (Photo by Adam Taylor/ABC via Getty Images) ALFONSO RIBEIRO, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1909' . (Photo by Adam Taylor/ABC via Getty Images)
DANCING WITH THE STARS - 'Episode 1909' (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' --  (Photo by Adam Taylor/ABC via Getty Images) ALFONSO RIBEIRO, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, LINDSAY ARNOLD (OBSCURED)
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) BETHANY MOTA, DEREK HOUGH, JANEL PARRISH, VAL CHMERKOVSKIY, LEA THOMPSON, ARTEM CHIGVINTSEV, SADIE ROBERTSON, MARK BALLAS, WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) TOM BERGERON, WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) ALFONSO RIBEIRO, LINDSAY ARNOLD, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, LINDSAY ARNOLD
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, LINDSAY ARNOLD
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images)TOM BERGERON, WITNEY CARSON, ALFONSO RIBEIRO, LINDSAY ARNOLD
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1909' -- The six remaining couples on 'Dancing with the Stars' danced to a song and dance style voted on by viewers for 'AMERICA'S CHOICE' night on MONDAY, NOVEMBER 10 (8:00-10:01 p.m., ET). Each couple performed two full routines including an individual original dance and a trio dance. For the trio dance, couples had the opportunity to pick an eliminated pro or troupe member to enhance their performance and highlight the strengths of each star. The trio dance styles included the Argentine Tango, Paso Doble, Samba and Foxtrot. (Photo by Adam Taylor/ABC via Getty Images) TOM BERGERON, ERIN ANDREWS, WITNEY CARSON, ALFONSO RIBEIRO, BETHANY MOTA, DEREK HOUGH, JANEL PARRISH, VAL CHMERKOVSKIY, LEA THOMPSON, ARTEM CHIGVINTSEV, SADIE ROBERTSON, MARK BALLAS, PETA MURGATROYD, TOMMY CHONG
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, BETSEY JOHNSON, TONY DOVOLANI
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, BETSEY JOHNSON, TONY DOVOLANI
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) ALFONSO RIBEIRO, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO, BETSEY JOHNSON, TONY DOVOLANI
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) ANTHONY NAYLOR JR., ALFONSO RIBEIRO, WITNEY CARSON
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1902' - It was #myjammonday this week on 'Dancing with the Stars.' The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photo by Adam Taylor/ABC via Getty Images) BACK ROW: WITNEY CARSON, ALFONSO RIBEIRO, CHERYL BURKE, ANTONIO SABATO JR., BETSEY JOHNSON, TONY DOVOLANI, ALLISON HOLKER, JONATHAN BENNETT, LEA THOMPSON, ARTEM, CHIGVINTSEV, KARINA SMIRNOFF, RANDY COUTURE, SHARNA BURGESS, TAVIS SMILEY, PETA MURGATROYD, TOMMY CHONG; FRONT ROW: SADIE ROBERTSON, MARK BALLAS, JANEL PARRISH, VAL CHMERKOVSKIY, TOM BERGERON, ERIN ANDREWS, EMMA SLATER, MICHAEL WALTRIP, BETHANY MOTA, DEREK HOUGH
DANCING WITH THE STARS - 'Episode 1903' - Eleven remaining couples competed during 'Movie Night,' as they danced to songs from their favorite movies, on 'Dancing with the Stars,' MONDAY, SEPTEMBER 29, on the ABC Television Network. Kevin Hart, from 'Ride Along,' 'Think Like a Man' and the upcoming movie 'The Wedding Ringer,' guest judged alongside Carrie Ann Inaba, Julianne Hough and Bruno Tonioli. Monday's show kicked-off with a spectacular opening number featuring the entire cast. (Photo by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - "Episode 1902" - It was #myjammonday this week on "Dancing with the Stars." The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - "Episode 1902" - It was #myjammonday this week on "Dancing with the Stars." The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1902' - It was #myjammonday this week on 'Dancing with the Stars.' The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1902' - It was #myjammonday this week on 'Dancing with the Stars.' The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1902' - It was #myjammonday this week on 'Dancing with the Stars.' The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - 'Episode 1902' - It was #myjammonday this week on 'Dancing with the Stars.' The 12 remaining celebrities danced to their favorite songs on MONDAY, SEPTEMBER 22 (8:00-10:01 p.m., ET), on the ABC Television Network. Monday's show kicks-off with a spectacular opening number featuring the full cast and judges dancing to a medley of the judges' favorite songs. Each couple then performed a variety of dances, including the Cha Cha, Foxtrot, Jive and Rumba, to their favorite jam. (Photos by Adam Taylor/ABC via Getty Images) TOM BERGERON, WITNEY CARSON, ALFONSO RIBEIRO
DANCING WITH THE STARS - REHEARSALS - The stars grace the ballroom floor for the first time on live national television with their professional partners during the two-hour season premiere of 'Dancing with the Stars,' which airs MONDAY, SEPTEMBER 15 (8:00-10:01 p.m., ET) on the ABC Television Network. One couple will be eliminated on the 'Dancing with the Stars' results show the following day, on TUESDAY, SEPTEMBER 16 (8:00-9:00 p.m., ET). (Photo by Rick Rowell/ABC via Getty Images)
GOOD MORNING AMERICA - The new cast of Dancing With The Stars was announced on GOOD MORNING AMERICA, 9/4/14, and include celebrities: (in alphabetical order) Jonathan Bennett, Tommy Chong, Randy Couture, Betsey Johnson, Lolo Jones, Bethany Mota, Janel Parrish, Alfonso Ribeiro, Sadie Robertson, Antonio Sabato Jr., Tavis Smiley, Lea Thompson and Michael Waltrip. They will team up with professional dancers Mark Ballas, Cheryl Burke, Sharna Burgess, Witney Carson, Artem Chigvintsev, Valentin Chmerkovskiy, Tony Dovolani, Allison Holker, Derek Hough, Keo Motsepe, Peta Murgatroyd, Emma Slater and Karina Smirnoff. The two-hour season premiere of 'Dancing with the Stars,' airs MONDAY, SEPTEMBER 15 (8:00-10:00 p.m., ET) on the ABC Television Network. (Photo by Ida Mae Astute/ABC via Getty Images)
DANCING WITH THE STARS - REHEARSALS - The stars grace the ballroom floor for the first time on live national television with their professional partners during the two-hour season premiere of 'Dancing with the Stars,' which airs MONDAY, SEPTEMBER 15 (8:00-10:01 p.m., ET) on the ABC Television Network. One couple will be eliminated on the 'Dancing with the Stars' results show the following day, on TUESDAY, SEPTEMBER 16 (8:00-9:00 p.m., ET). (Photo by Rick Rowell/ABC via Getty Images)
DANCING WITH THE STARS - REHEARSALS - The stars grace the ballroom floor for the first time on live national television with their professional partners during the two-hour season premiere of 'Dancing with the Stars,' which airs MONDAY, SEPTEMBER 15 (8:00-10:01 p.m., ET) on the ABC Television Network. One couple will be eliminated on the 'Dancing with the Stars' results show the following day, on TUESDAY, SEPTEMBER 16 (8:00-9:00 p.m., ET). (Photo by Rick Rowell/ABC via Getty Images)
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Say it isn't so!

ET can confirm that Dancing with the Starsseason 19 favorite Alfonso Ribeiro was injured during rehearsal for the hit ABC show. The 43-year-old Fresh Prince of Bel-Air star is currently undergoing medical evaluation and it has not yet been determined whether or not he will be able to perform on Monday night's semi-finals.

This hasn't been the first injury Ribeiro has suffered during the intense season. In October, he aggravated a groin injury during a hip-hop samba number with partner Witney Carson.

Just this Saturday, Ribeiro dished to ET that his age over younger competitors Janel Parrish (26), Bethany Mota (19) and Sadie Robertson (17) is his biggest disadvantage when it comes to winning the coveted mirror ball trophy.

VIDEO: Does Alfonso Ribeiro Know the 'Fresh Prince' Rap?

"I would say the kids are my biggest competition," he admitted during Southern Comfort's World's Largest Group Toast event. "You know, the three girls: Sadie, Bethany, and Janel. They've got the stamina to go all the way."

He also revealed the grueling preparation it takes for the show's weekly dances.

"I kind of knew what I was getting into beforehand. It's just, no matter how much you know about the hours you're going to be working, until you're actually doing it, you have no idea," he said. "It's literally every day. It's seven days a week. It's six or seven hours a day, minimum. It's a lot of time. There's a lot that goes into it."

Ribeiro has continued to impress both the judges and fans alike during season 19, especially when he brought out the beloved Carlton dance from his Fresh Prince of Bel-Air days in October.

Watch the scene-stealing moment in the video below.

Alfonso Ribeiro FINALLY Does the Carlton on 'Dancing With The Stars'

PHOTOS: The Complete 'Dancing with the Stars' Winners List

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