No. 8 Michigan blew a 12-point second-half lead, then finished the game on a 7-1 run to beat archrival Ohio State 72-69 in Saturday's Big Ten tournament semifinal.
The league's regular-season champs will face No. 12 Wisconsin or No. 22 Michigan State in Sunday's championship game.
Nik Stauskas had 18 points and Caris LeVert had 17 to lead the Wolverines (25-7), winners of seven straight. It will be Michigan's first title game appearance since 1998, when it won its only tourney title, which was later vacated.
Ohio State (25-9) was led by LaQuinton Ross with 19 points and Shannon Scott with 18.
The Buckeyes rallied to take their lead at 61-60 with 7:57 to go and still led 68-65 with 4:12 to play.
But the Wolverines allowed just one free throw the rest of the way and Aaron Craft lost control of the ball on a potential tying 3-pointer in the closing seconds.
Adreian Payne scored 18 points, Branden Dawson had 14 and No. 22 Michigan State beat No. 12 Wisconsin 83-75 on Saturday to reach the Big Ten tournament championship.
The third-seeded Spartans (25-8) won consecutive games for the first time since winning 11 straight in a stretch over December and January. They will face No. 8 Michigan in the final on Sunday.
The Spartans went on a 16-1 run in the first half and took a 37-16 lead when Gary Harris scored with 5:39 left before halftime.
Frank Kaminsky had 28 points and Sam Dekker added 11 points and seven rebounds for the second-seeded Badgers (26-7).
- Mark Marot and Jim Johnson (AP Sports Writers)