ANN ARBOR, Mich. (AP) — Offensive lineman Justin Boren said Wednesday that he's left the Michigan football team because the program's "family values have eroded."

The 6-foot-3, 310-pound Boren would have been one of two returning starters on the offensive line and would have been the Wolverines' most experienced lineman. The junior-to-be started every game last season, either at center or left guard.

Boren left the team Monday. On Wednesday he released a statement saying in part: "Michigan football was a family, built on mutual respect and support for each other from (former) Coach (Lloyd) Carr on down. We knew it took the entire family, a team effort, and we all worked together.

"I have great trouble accepting that those family values have eroded in just a few months. " ... That I am unable to perform under these circumstances at the level I expect of myself, and my teammates and Michigan fans deserve, is why I have made the decision to leave."

Boren told reporters after Michigan's first spring practice 10 days ago that adapting to new coach Rich Rodriguez's no-huddle spread offense was physically challenging. He mentioned the difficulty the offensive linemen had constantly running to the line of scrimmage.

In comments reported by The Detroit News, Detroit Free Press and The Ann Arbor News, Rodriguez said Tuesday that he would not discuss Boren's decision.

"I don't know if we'll have any more (attrition), but we're forging ahead with guys that play for Michigan."