USC senior running back Marc Tyler was sidelined in the second half of the Trojans' 30-9 victory over Pac-12 rival California Thursday night with a dislocated left shoulder.
Tyler was limited to 30 yards on 11 attempts against a stout Cal run defense before suffering the injury. He was clearly in pain as he walked off the field. When he returned Tyler was in street clothes.
Tyler, 5-10 and 230 pounds, is viewed as one of the better power runners of the 2012 draft. His inconsistencies on and off the field while with the Trojans, however, have made his stock unsteady, at best. Currently, he is NFLDraftScout.com's 20th rated running back for the 2012 draft.
Tyler has rushed for 338 yards and two touchdowns so far in 2011 and has 1,521 yards and 13 touchdowns for his career.
It has been a rough few weeks for Pac-12 running backs on Thursday primetime games. Last week Oregon running back LaMichael James suffered an ugly elbow dislocation against Cal. The 2011 Heisman finalist, who is seeking his second consecutive season as the NCAA's leading rusher, is expected to be sidelined for Oregon's showdown Saturday night against Arizona State.
Oregon head coach Chip Kelly refused to provide a timetable for James' return. USC's Lane Kiffin will hopefully be a little more forthcoming with Tyler's expected return date.