Brian Butch banked in a 3-pointer with 4.5 seconds left and the 15th-ranked Badgers held on for a 68-66 victory over No. 13 Indiana.
Butch finished with 13 points and four rebounds. Jason Bohannon scored 18 points, all on 3-pointers, and Michael Flowers added 15 points for Wisconsin (20-4, 10-2 Big Ten).
Indiana (20-4, 9-2) was led by Eric Gordon with 23 points and D.J. White with 17 points and eight rebounds. But it wasn't quite enough on a night basketball was overshadowed by coach Kelvin Sampson's alleged recruiting violations.
Indiana led 37-36 at halftime and built a 46-40 lead early in the second half, before Wisconsin went on a 9-2 run.
The teams traded the lead seven times during the final 96 seconds.
Indiana had a chance to win it at the buzzer, but Jamarcus Ellis' 3-pointer bounced off the back of the rim.
(Copyright 2008 by The Associated Press. All Rights Reserved.)