EAST LANSING, Mich. (AP)
The Cornhuskers (12-8, 4-3 Big Ten) have won four straight, three on the road, this season.
Michigan State (17-4, 3-4) has lost three straight.
The Spartans trailed by eight late in the game, but pulled within two with 45.8 seconds to go when Eron Harris connected on a 3-pointer.
Shields made a floater over Valentine on the ensuing possession. Valentine's 3-pointer with 5.2 seconds left cut the deficit to one point, but couldn't make one more shot.