The man who played boxing’s most famous fictional character announced Tuesday that two of the biggest names in professional fighting will appear in his next film.

The Expendables and its sequel were actually co-written by Sylvester Stallone, with the successful films relying on the gimmick of their action star-loaded cast. Well, some celebrities who do their own stunts will get a couple cameos in the third edition of the series, as Stallone announced that boxer Victor Ortiz and UFC fighter Ronda Rousey will appear in the movie.

The move is a bit of a surprise for Rousey, who specifically said she would not get into acting until after her MMA career after rumors circulated she was up for a role in the sequel to The Hunger Games.

Check out Stallone’s tweet announcing the casting below.