DETROIT -- Horizon League player of the year Kendrick Nunn scored 18 points and short-handed Oakland beat IUPUI 62-55 on Sunday night in the quarterfinals of the league tournament.

Nunn, the nation's second-leading scorer at 26.4 points per game, was just 6 of 20 from the field, including 2 of 10 from distance but his four free throws in the closing seconds sealed it.

Nick Daniels and Jalen Hayes each added 13 points and Isaiah Brock had 10 points and six blocks for Oakland (19-13), which was without third-leading scorer Martez Walker at 17.6 points and four others with injuries.

Fourth-seeded Oakland will face No. 8 seed Cleveland State, which upset top-seeded Northern Kentucky, on Monday in the semifinals. The Golden Grizzlies beat the Vikings by double figures in both regular-season meetings.

Aaron Brennan had 14 points and nine rebounds for No. 5 seed IUPUI (11-19). D.J. McCall added 12 points.

Brennan missed a floater in the lane and the ball was lodged between the rim and the backboard, with Oakland having the possession arrow. McCall got into the paint but had his shot blocked by Brock. Nunn sank two free throws with 26.9 seconds left for a five-point lead and he was fouled after making a steal, while diving into the stands, on the other end.