Buie, Northwestern beat No. 4 Michigan State 79-65

Northwestern forward Pete Nance, left, rebounds the ball against forward Robbie Beran, center, and Michigan State forward Aaron Henry during the first half of an NCAA college basketball game in Evanston, Ill., Sunday, Dec. 20, 2020. (AP Photo/Nam Y. Huh)

Michigan State forward Marcus Bingham Jr., left, blocks a shot by Northwestern forward Robbie Beran during the first half of an NCAA college basketball game in Evanston, Ill., Sunday, Dec. 20, 2020. (AP Photo/Nam Y. Huh)

Northwestern head coach Chris Collins, left, celebrates with guard Boo Buie during the second half of an NCAA college basketball game against Michigan State in Evanston, Ill., Sunday, Dec. 20, 2020. Northwestern won 79-65. (AP Photo/Nam Y. Huh)

Michigan State guard Rocket Watts, right, shoots over Northwestern guard Boo Buie during the first half of an NCAA college basketball game in Evanston, Ill., Sunday, Dec. 20, 2020. (AP Photo/Nam Y. Huh)