Sterling K. Brown flaunts incredible six-pack abs on 'Predator' set -- see the pic!



Sterling K. Brown is taking his training for the upcoming Predator movie seriously, and his hard work is paying off!

The Emmy-winning actor showed off the six-pack abs he's been working on in a shirtless selfie shared to Instagram on Sunday.

WATCH: Sterling K. Brown Gets Emotional Over Gut-Wrenching 'This Is Us': 'Tomorrow Is Not Promised'

"I've been working on @the_predator_movie with the wonderful @_trevante_ , & try as I might to believe otherwise...that brother reminds me everyday that I'm 40 years old!" Brown joked. "Even still...thanks for the inspiration young man."

See more photos of the "This Is Us" cast:

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'This Is Us' season 1
THIS IS US -- 'The Big Three' Episode 102 -- Pictured: (l-r) Mandy Moore as Rebecca, Mackenzie Hancsicsak as Kate, Milo Ventimiglia as Jack, Parker Bates as Kevin, Lonnie Chavis as Randall -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Kyle' Episode 103 -- Pictured: Mandy Moore as Rebecca -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Trip' Episode 109 -- Pictured: (l-r) Justin Hartley as Kevin, Chrissy Metz as Kate -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Game Plan' Episode 105 -- Pictured: (l-r) Mandy Moore as Rebecca, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Pool' Episode 104 -- Pictured: (l-r) Mandy Moore as Rebecca, Lonnie Chavis as 8 year old Randall -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Best Washing Machine in the Whole World ' Episode 107 -- Pictured: (l-r) Chrissy Metz as Kate, Chris Sullivan as Toby -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Game Plan' Episode 105 -- Pictured: (l-r) Mandy Moore as Rebecca, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Career Days' Episode 106 -- Pictured: (l-r) Milo Ventimiglia as Jack, Mandy Moore as Rebecca -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Pilgrim Rick' Episode 108 -- Pictured: Chrissy Metz as Kate -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Pilgrim Rick' Episode 108 -- Pictured: (l-r) Mackenzie Hancsicsak as 8 year old Kate, Milo Ventimiglia as Jack, Mandy Moore as Rebecca, Parker Bates as 8 year old Kevin, Lonnie Chavis as 8 year old Randall -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Big Day' Episode 112 -- Pictured: (l-r) Mackenzie Hancsicsak as Kate, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC)
THIS IS US -- 'The Big Day' Episode 112 -- Pictured: Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC)
THIS IS US -- 'The Big Day' Episode 112 -- Pictured: (l-r) Mandy Moore as Rebecca, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC)
THIS IS US -- 'Last Christmas' Episode 110 -- Pictured: (l-r) Gerald McRaney as Dr. Nathan Katowsky, Milo Ventimiglia as Jack, Mandy Moore as Rebecca -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Last Christmas' Episode 110 -- Pictured: (l-r) Mackenzie Hancsicsak as 8 year old Kate, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'The Best Washing Machine in the Whole World ' Episode 107 -- Pictured: (l-r) Mandy Moore as Rebecca, Milo Ventimiglia as Jack -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THS IS US -- 'Pilgrim Rick' Episode 108 -- Pictured: (l-r) Parker Bates as 8 year old Kevin, Milo Ventimiglia as Jack, Lonnie Chavis as 8 year old Randall -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
THIS IS US -- 'Kyle' Episode 103 -- Pictured: (l-r) Justin Hartley as Kevin, Sterling K. Brown as Randall, Chrissy Metz as Kate -- (Photo by: Ron Batzdorff/NBC/NBCU Photo Bank via Getty Images)
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NEWS: Sterling K. Brown Says Marvel's 'Black Panther' Isn't Just an Action Film: 'It's Socially Relevant'

All that core strength should serve the busy People v. OJ Simpson actor well -- besides Predator, he's got a role in Marvel's upcoming Black Panther coming up, as well as season two of This Is Us.

Speaking of This Is Us -- check out the adorable cast reaction to news of their second season renewal in this video.

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