Main event fighter Justin Wilcox, fellow lightweight Josh Thornburg and twin brothers David (lightweight) & Damian (welterweight) Douglas hit the gym in Stockton, CA in advance of this Friday's Challengers show (11p ET/PT) on SHOWTIME.
Open workouts: See the fighters of the UFC Fight Night 24 main card - who's coming out aggressive, who's gonna rough you up and who's pumped for a big-name matchup.
UFC 127 open workouts - Michael Bisping practices grapling during an Open Workout ahead of UFC Sydney 127 at Star City on February 22, 2011 in Sydney, Australia.
