Injured big man Mitch McGary won't play in season opener for No. 7 Michigan

Michigan forward Mitch McGary, center, gives a hand to guard Derrick Walton Jr., right, during a timeout in the second half of an NCAA college basketball exhibition game with Wayne State, at Crisler Center in Ann Arbor, Mich., Monday, Nov. 4, 2013. Michigan won 79-60. (AP Photo/Tony Ding) (The Associated Press)

Michigan Mitch McGary greets players during a timeout against Wayne State in the first half of an exhibition NCAA basketball game in Ann Arbor, Mich., Monday, Nov. 4, 2013. (AP Photo/Paul Sancya) (The Associated Press)

Michigan center Mitch McGary will miss Friday night's season opener against UMass-Lowell because of a lingering back problem.

Coach John Beilein didn't offer many details about McGary's condition or progress. The 6-foot-10 sophomore was named to the AP's preseason All-America team, but it's not clear when he'll be able to take the court this season. The seventh-ranked Wolverines will raise a banner Friday before the game to commemorate last season's run to the Final Four.

McGary averaged 7.5 points per game last season as a freshman, but in the NCAA tournament he averaged 14.3 points and 10.7 rebounds, helping the Wolverines reach the national championship game, which they lost to Louisville.