Star Big 12 defender goes down after a brutal collision with a teammate

He was down on the field for several minutes after the hit.

Oklahoma State defensive back A.J. Green went down during the Camping World Bowl against Virginia Tech on Thursday night after a collision with his own teammate.

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Green — No. 4 in the black jersey — comes in from the side and his helmet makes contact with the knee of one of his teammates. After the hit, Green was motionless on the field for a few minutes, but he was eventually able to walk off the field with some help.

Fellow defensive back Rodarius Williams — with whom Green collided — was also taken back to the locker room after getting hit on the knee with Green's helmet.

Green was a standout defensive player for Oklahoma State this year as a sophomore. Green entered the bowl game with 43 total tackles and four interceptions on the season; the interception number was good enough to be tied for second in the entire Big 12.