Chris Owusu leaves field in ambulance

CORVALLIS, Ore. -- Stanford wide receiver Chris Owusu suffered a concussion and was taken off the field in an ambulance with 4:26 remaining in the first half of the Cardinal's 38-13 win over Oregon State.

Owusu was hit by Oregon State's Jordan Poyer, fumbled and the ball was returned for an Oregon State touchdown. However, the play was reversed because a penalty was called on the hit for "targeting above the shoulder pads."

Owusu remained on the ground for several minutes before being moved to a stretcher and placed in a neck brace. He was conscious when he left the field and had full range of motion of all of his extremities.

He was taken to a local hospital for observations and X-rays, but he later returned to Reser Stadium and was in the locker room after the game. He will fly back to Stanford with his teammates.

His status for next week against Oregon is not known.

Owusu has taken several vicious hits in his career at Stanford. Last week against USC he left the game in the fourth quarter after taking a hard hit from USC safety T.J. McDonald, who was flagged on the play and suspended half a game by the Pac-12.

Earlier in the year, Owusu left the Washington State game after suffering a concussion on a helmet-to-helmet hit. He also missed several games last season because of concussions.

Kevin Gemmell is ESPN.com's Stanford blogger.