There's been a bit of an uproar from the Indiana fan base in the days following IU's 81-73 over Michigan. Many Hoosier fans believe that the Wolverines' Glenn Robinson III punched IU point guard Jordan Hulls in the face late in the second alf, and that he's due for some sort of reprimand.
Here's the video of the incident in question (ignore the unnecessary bitterness from last year's VCU game at the end):
It certainly appears as if this is nothing more than Hulls being in the wrong place at the wrong time. Repeated viewings in GIF form also make it pretty clear that Robinson III had no idea Hulls was standing there when he turned around.
Enjoy being the new No. 1 in college basketball and let this go, Indiana fans.