Who murdered dennis dixon's career?

In 2007, while Dennis Dixon was a front runner to win the Heisman and BCS champs, he tore his acl. He tore it against ASU, but he aggravated it which ended his college career and he has not been the same since. What i want to know is who is the oregon lineman that ruined dennis dixon's career! This is because i vividly remember watching the game and seeing his own lineman hit him, but i am not sure who it exactly was. Also, all the youtube videos are disabled so i cannot find out there.