Edwards scores 21, No. 11 Purdue beats Northwestern 70-57

Northwestern forward Vic Law (4) is checked by after he was injured during the second half of an NCAA college basketball game against Purdue, Saturday, March 9, 2019, in Evanston, Ill. Purdue won 70-57. (AP Photo/Nam Y. Huh)

Northwestern head coach Chris Collins wipes his eyes as he watches the big screen during a ceremony honoring the team seniors, before an NCAA college basketball game against Purdue, Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)

Northwestern forward Vic Law reacts after he made a three-point basket during the first half of an NCAA college basketball game against Purdue, Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)

Northwestern forward Vic Law reacts as he sits on the bench after he was injured during the second half of an NCAA college basketball game against Purdue, Saturday, March 9, 2019, in Evanston, Ill. Purdue won 70-57. (AP Photo/Nam Y. Huh)

Purdue guard Carsen Edwards, right, celebrates with forward Grady Eifert after scoring a basket against Northwestern during the first half of an NCAA college basketball game Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)

Purdue head coach Matt Painter reacts to a call during the first half of an NCAA college basketball game against Northwestern, Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)

Northwestern forward Pete Nance, top, blocks a shot by Purdue guard Carsen Edwards during the first half of an NCAA college basketball game Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)

Purdue guard Ryan Cline, right, shoots against Northwestern forward Miller Kopp during the first half of an NCAA college basketball game Saturday, March 9, 2019, in Evanston, Ill. (AP Photo/Nam Y. Huh)