It looks like we now have an idea on why Tennessee defensive tackle Danny O'Brien was dismissed from the program earlier in the week.
Videos by FanBuzz
Radio host Jimmy Hyams out of Knoxville is reporting that O'Brien was dismissed after failing another drug test. O'Brien had two previous suspensions for failed tests on his record already.
O'Brien's last game with Tennessee definitely won't be a fond memory for him. O'Brien left the game in the fourth quarter, where he had to be stretchered off the field after a helmet-to-helmet hit. He was released from the hospital in time to travel home with the team.
O'Brien had 63 tackles and four sacks in his career with the Volunteers. He had 14 tackles through six games this season.
[H/T SEC Country]
