Detroit Lions RB Theo Riddick reportedly had surgery on both wrists

Detroit Lions running back Theo Riddick underwent surgery on both of his wrists before going on injured reserve last season, according to multiple reports Sunday.

Riddick, 25, missed the final month of the regular season last year with a wrist injury, but it turns out the surgery on both wrists prompted his season-ending trip to IR, sources told the Detroit Free Press on Sunday.

Riddick had a large cast on his left wrist in January during the locker cleanout session following the Lions' 26-6 loss to the Seattle Seahawks in the wild-card playoff game. At the time, he declined to say what the injury was or whether he had surgery on the wrist, according to ESPN.

Lions coach Jim Caldwell, after putting Riddick on injured reserve Dec. 31, also declined to say whether Riddick would need surgery.

Riddick is expected to be a full participant in organized team activities later this spring, according to the Free Press.

The 5-foot-9, 201-pound Riddick played in 10 games last season for the Lions, starting eight, and rushed a career-high 92 times for a career-best 357 yards and a touchdown. He also had 53 catches for 371 yards and five touchdowns before his injuries.