Aaron Harrison hit a 3-pointer with 5.7 seconds left to lift Kentucky to a one-point victory over Wisconsin.
Frank Kaminsky had 28 points and 11 rebounds for Wisconsin, rallying the Badgers to a 64-63 overtime victory against Arizona to advance to the Final Four.
Ben Brust hit three 3-pointers and scored 14 points for the second-seeded Badgers who jumped to a 14-point lead in the first half and never let up on the overmatched Bears.
Marshall Henderson shook out of a shooting slump and scored 17 points in the second half, leading 12th-seeded Mississippi past No. 5 Wisconsin, 57-46, on Friday, giving the Rebels their first NCAA Tournament win since 2002.
A University of Oregon player applied the Heimlich Maneuver on man choking on a piece of food.