It looks like the Lions will be without running back Theo Riddick when they travel to New Jersey to face the Giants on Sunday afternoon. Riddick has been listed as doubtful after missing practice all week with the wrist injury that kept him out of the lineup last weekend as well. Riddick was replaced by Dwayne Washington and Zach Zenner in that win over the Bears, but it may be Washington in a more prominent role this weekend. Zenner is listed as questionable with a concussion and was limited at practice all week. Veteran Joique Bell is also available for the Lions.