Lee punched his strength coach, T.J. Greenstone, twice in the head and knocked him to the ground, as you can see in the video below.
Before the getting duffed in the face, Greenstone told Lee to back away from the sideline.
University officials confirmed head coach Rod Reed dismissed Lee from the sideline immediately, and on Monday, it was announced that the 22-year-old senior had been expelled from school. "We are committed to supporting the coach who was personally affected and our concern now is with him".
The TSU offense was on the field when the incident occurred, according to The Tennessean.
Lee, who is 6-foot-2, 240 pounds, started two games for the Tigers this season and registered 18 tackles, including three and a half tackles for loss.
Expulsion really could not have come at a worse time for Lee, as he was a senior Criminal Justice major and Honor Roll member past year.