Former UFC champion Randy Couture has signed on to do a new action movie, "The Expendables,"  starring him, Sylvester Stallone and Dolph Lundgren. Couture lost his belt to former pro wrestling sensation Brock Lesnar after a long layoff from fighting due to a contract dispute with the UFC. This is his second movie in production, so it could be a signal that he is walking away from the Octagon for good.

Since the loss to Lesnar, Couture has not discussed his future as a fighter. Rumors have been floated about a fourth fight between Couture and Chuck Liddell, another former champion who has also tried Hollywood, but no fight has been set yet. With Couture spending time on a movie set, it would be difficult for him to put in the time needed to prepare for a fight.

He is not the only fighter to test the waters in entertainment. Cung Le, a champion for the MMA promotion Strikeforce, said that he will only return to fighting from his movie career for "something big." Forrest Griffin, who will defend his light heavyweight UFC championship belt at UFC 92 on December 27, guest starred on "Law and Order:SVU," and UFC champs B.J. Penn, Georges St. Pierre and Anderson Silva all have appearances in a 2009 movie project, "Never Surrender."

If Couture were to never throw another punch or attempt another takedown, he will still be known as one of the greatest mixed martial artists of all time. He is a member of the UFC Hall of Fame, and helped build the UFC into the juggernaut it is today. Couture has been with the UFC since its early days and survived to become one its fighters most beloved by fans.