Michigan State coach Tom Izzo called out his star player at halftime Sunday. Draymond Green's response exceeded even Izzo's expectations. Green scored 20 points, had 10 rebounds, seven assists and almost single-handedly shut down Purdue's Robbie Hummel in the second half, leading Michigan State (No. 8 ESPN/USA Today, No. 7 AP) to a key 76-62 victory over the short-handed Boilermakers.