'WWHL': John McEnroe confirms he dated one of the Real Housewives

Game, set ... not a match!

John McEnroe confirmed on Thursday night's episode of "Watch What Happens Live" on Thursday night that he dated "Real Housewives of New York" star Sonja Morgan, though he didn't want to say much more about his fling with the reality star.

Andy Cohen asked a fan-submitted question that asked, "Sonja Morgan from 'The Real Housewives of New York' said that the two of you once dated before her ex-husband. Do you recall this?"

"Um... yes I do," McEnroe said carefully. "I do recall that."

"This really happened?!" Cohen said, shocked.

"I believe that did happen, but I'd rather not discuss it right now," McEnroe laughed. "Cause my wife and my daughter are here. It's okay with my daughter, but my wife I'm not so sure."

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'Real Housewives of New York' star Sonja Morgan
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'Real Housewives of New York' star Sonja Morgan
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Sonja Morgan -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Sonja Morgan -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NEW YORK - MARCH 13: Sonja Morgan attends WE TV 'Bridezillas' season 12 fashion show at The Angel Orensanz Foundation on March 13, 2019 in New York City. (Photo by Santiago Felipe/WireImage)
NEW YORK, NY - MARCH 04: Sonja Morgan is seen on March 04, 2019 in New York City. (Photo by Nancy Rivera/Bauer-Griffin/GC Images)
NEW YORK, NEW YORK - MARCH 04: TV personalities Sonja Morgan (L) and Luann de Lesseps attend the 'Gloria Bell' New York screening at Museum of Modern Art on March 04, 2019 in New York City. (Photo by Jim Spellman/WireImage)
NEW YORK, NEW YORK - MARCH 04: Reality TV personality and Real Housewife of New York City Sonja Morgan visits 'Extra' at The Levi's Store Times Square on March 04, 2019 in New York City. (Photo by Michael Loccisano/Getty Images)
NEW YORK, NEW YORK - MARCH 04: Reality TV personalities and Real Housewives of New York City Ramona Singer (L) and Sonja Morgan visit 'Extra' at The Levi's Store Times Square on March 04, 2019 in New York City. (Photo by Michael Loccisano/Getty Images)
NEW YORK CITY, NY - FEBRUARY 07: Sonja Morgan, Mario Cantone and Luann de Lesseps attends the The 3rd Annual Blue Jacket Fashion Show Benefitting The Prostate Cancer Foundation at Pier 59 Studios on February 7, 2019 in New York City, NY. (Photo by Rob Kim/Getty Images for Blue Jacket)
NEW YORK CITY, NY - FEBRUARY 07: Sonja Morgan prepares backstage during the The 3rd Annual Blue Jacket Fashion Show Benefitting The Prostate Cancer Foundation at Pier 59 Studios on February 7, 2019 in New York City, NY. (Photo by Rob Kim/Getty Images for Blue Jacket)
NEW YORK, UNITED STATES - 2018/12/14: Sonja Morgan attends Susanne Bartsch and David Barton's Toy Drive at TMPL West Village. (Photo by Lev Radin/Pacific Press/LightRocket via Getty Images)
NEW YORK, NEW YORK - NOVEMBER 30: Sonja Morgan attends the Improv Asylum Grand Opening Event on November 30, 2018 in New York City. (Photo by Thomas Concordia/Getty Images for Improv Asylum )
NEW YORK, NEW YORK - NOVEMBER 30: (L-R) Sonja Morgan, Ramona Singer and Tinsley Mortimer attend the Improv Asylum Grand Opening on November 30, 2018 in New York City. (Photo by JP Yim/Getty Images for Improv Asylum )
NEW YORK, NY - NOVEMBER 29: Jill Zarin (L) and Sonja Morgan attend the Lotte New York Palace Annual Tree Lighting on November 29, 2018 in New York City. (Photo by Craig Barritt/Getty Images for Lotte Place New York Palace)
NEW YORK, NY - NOVEMBER 09: Sonja Morgan and Andrew Werner attend the 2018 American Friends of Blerancourt Dinner on November 9, 2018 in New York City. (Photo by Theo Wargo/Getty Images)
NEW YORK, NY - NOVEMBER 05: Sonja Morgan attends Phobia Relief Day on November 5, 2018 in New York City. (Photo by Sylvain Gaboury/Patrick McMullan via Getty Images)
NEW YORK, NY - OCTOBER 22: Sonja Morgan attends the 2018 Angel Ball at Cipriani Wall Street on October 22, 2018 in New York City. (Photo by Taylor Hill/Getty Images)
NEW YORK, NY - OCTOBER 22: Sonja Morgan, Ramona Singer, Dorinda Medley, and Jill Zarin attend the 2018 Angel Ball at Cipriani Wall Street on October 22, 2018 in New York City. (Photo by Taylor Hill/Getty Images)
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Though it's unclear exactly when the two stars dated, it likely happened sometime in the '90s, before Morgan married her ex-husband, John Adams Morgan, in 1998 and before McEnroe married his current wife, Patty Smyth, in 1997. He split from previous wife, Tatum O'Neal, in 1994, so we're guessing that his date with Morgan happened sometime between 1994 and 1997.

Morgan has also said that she dated Owen Wilson, Prince Albert of Monaco and Jack Nicholson in the past.

Watch John McEnroe's full reveal in the video below:

More celebrity couples that you didn't know about:

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