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Sylvester Stallone won for his work in "Creed" during Sunday's Critics' Choice Awards. Pictured: Stallone attends the European premiere of "Creed" on Jan. 12, 2016 in London. Getty Images

Sylvester Stallone was given a round of applause and a standing ovation from his peers at the 2016 Critics’ Choice Awards Sunday. The “Creed” actor won for Best Supporting Actor for his work in the drama film.

“I guess there’s at least one upside to getting older,” the 69-year-old actor joked after accepting his win. “I am truly amazed. I did not expect this tonight. I swear to you, at the bottom of my heart … I had no intention. I’m kinda late to this party. and I’m very very appreciate of it, really.”

Watch Stallone win:

Stallone, who reprised his Rocky Balboa role for the movie, thanked director Ryan Coogler for the win. Stallone called the filmmaker a “genius” and said he was the one who “made it all happen.” The veteran performer also paid tribute to his co-star, Michael B. Jordan, who played heavyweight champion Apollo Creed’s son in the film, calling him a “great, great talent” and saying he will be in the business for a “long, long time.”

Watch Stallone talk about Michael B. Jordan:

Stallon ended his speech by saying he understands the importance of critics, even if he doesn’t always agree with their opinions. “I don’t know what more to say other than critics are important,” he said. “I never used to understand critics … But actually, I realize, they’re begin very, very instructive.”

Stallone was up against five other actors in the Best Supporting Actor category. The other nominees included: Paul Dano for “Love & Mercy,” Tom Hardy for “The Revenant,” Mark Ruffalo for “Spotlight,” Mark Rylance for “Bridge of Spies,” and Michael Shannon for “99 Homes.”

Get a refresher of all the 2016 Critics’ Choice Awards nominees HERE. Find out how to watch the show online and on TV HERE.