Butt ranked third on the Wolverines in receptions (20), receiving yards (235) and receiving touchdowns (two) last season, and he had five receptions for 85 yards and a touchdown in the regular-season finale against Ohio State.
There's no word from the school on when Butt, a native of Columbus, Ohio, will undergo surgery to repair the ACL. He's projected as Michigan's No. 2 tight end behind Devin Funchess, who recorded 49 receptions for 748 yards and six touchdowns last season.
Michigan coach Brady Hoke said in a release that Butt "will be back as soon as he can and as strong as ever." The Wolverines open spring practice Feb. 25.