Illinois' Trent Frazier (1) works the ball vs Northwestern in the first half of an NCAA college basketball game, Saturday, Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Kipper Nichols heads down court with teammate Alan Griffin after stealing the ball in the first half of an NCAA college basketball game against Northwestern, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Northwestern Head Coach Chris Collins has a word with an official as his team takes on Illinois in the second half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Giorgi Bezhanishvili (15) shoots over Northwestern's Jared Jones (4) in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Alan Griffin (0) shoots as Northwestern's Pat Spencer (12) defends in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Kipper Nichols (2) goes in for a lay up as Northwestern's Pete Nance (22) looks to defend in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Kofi Cockburn (21) faces heavy pressure from Northwestern's Robbie Beran (31) Miller Kopp (10) and Ryan Young (15) in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Kofi Cockburn (21) goes to the basket as Northwestern's Ryan Young (15) defends in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)

Illinois' Ayo Dosunmu (11) looks for an open shot as Northwestern's Miller Kopp (10) defends in the first half of an NCAA college basketball game, Saturday Jan. 18, 2020, in Champaign, Ill. (AP Photo/Holly Hart)