Tillie scores 22, top-ranked Gonzaga downs Portland 85-72

Portland forward Tahirou Diabate, left, defends against Gonzaga forward Filip Petrusev during the first half of an NCAA college basketball game in Portland, Ore., Thursday, Jan. 2, 2020. (AP Photo/Steve Dipaola)

Portland players react to a shot made against Gonzaga during the first half of an NCAA college basketball game in Portland, Ore., Thursday, Jan. 2, 2020. (AP Photo/Steve Dipaola)

Portland guard Quincy Ferebee, left, and center Theo Akwuba, right, defend against Gonzaga guard Ryan Woolridge, center, during the first half of an NCAA college basketball game in Portland, Ore., Thursday, Jan. 2, 2020. (AP Photo/Steve Dipaola)

Portland forward Tahirou Diabate, left, and Portland guard JoJo Walker, center, defend against Gonzaga guard Admon Gilder, right during the first half of an NCAA college basketball game in Portland, Ore., Thursday, Jan. 2, 2020. (AP Photo/Steve Dipaola)