Four Power Five teams entered the weekend undefeated in conference play. But not all of them would survive Saturday.  First, USC upset No. 7 Michigan State 70-64 at home. The Spartans entered the game riding a 13-game winning streak and had won their first nine games against Big Ten competition before losing to the Trojans on the road.

Michigan basketball nearly let its hand off the wheel, but held on for a 76-72 lead over Penn State to stay perfect at home

"Going into very meaningful games in February and March," Michigan basketball head coach Dusty May said. "We have to be able to grind some out."