Purdue guard Sasha Stefanovic reacts after making the winning three-point basket during the second half of an NCAA college basketball game against Northwestern in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Northwestern center Ryan Young, right, shoots against Purdue center Matt Haarms during the second half of an NCAA college basketball game in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Northwestern forward Pete Nance, right, shoots against Purdue during the second half of an NCAA college basketball game in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Purdue forward Trevion Williams (50) rebounds a ball against Northwestern forward Miller Kopp during the second half of an NCAA college basketball game in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Northwestern guard Pat Spencer, front right, drives against Purdue forward Evan Boudreaux during the second half of an NCAA college basketball game in Evanston, Ill., Saturday, Feb. 1, 2020. Purdue won 61-58. (AP Photo/Nam Y. Huh)

Northwestern head coach Chris Collins, left, talks to forward A.J. Turner during the first half of an NCAA college basketball game against Purdue in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Purdue guard Sasha Stefanovic reacts after making the winning three-point basket during the second half of an NCAA college basketball game against Northwestern in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)

Purdue head coach Matt Painter reacts to a call during the second half of an NCAA college basketball game against Northwestern in Evanston, Ill., Saturday, Feb. 1, 2020. (AP Photo/Nam Y. Huh)