For the cold-shooting Badgers (23-12), the upset loss snaps a string of six straight first-game victories. Ole Miss (27-8) trailed 25-22 at halftime and Henderson, who led the Southeastern Conference with 20 points a game, had only two points on one-for-11 shooting.
But the flamboyant and outspoken guard found his touch just in time for Ole Miss, and wound up hitting 6 of 21. His back-to-back 3-pointers tied it 36-36 and his layup and two free throws in the final minute sealed the win.
Reginald Buckner had nine points and 12 rebounds. Sam Dekkar had 14 points for Wisconsin.
In the third round of the West Regional on Sunday, the Rebels will play the winner of the matchup between No. 4 seed Kansas State and No. 13 La Salle.
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