Purdue cornerback Dedrick Mackey (1) breaks up a pass to Northwestern wide receiver Kyric McGowan (8) during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue running back Zander Horvath (40) pushes off the tackle of Northwestern linebacker Chris Bergin (28) during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue linebacker Derrick Barnes (55) celebrates a defensive stop with safety Jalen Graham (6) against Northwestern during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern quarterback Peyton Ramsey (12) throws against Purdue during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern wide receiver Ramaud Chiaokhiao-Bowman (81) makes a catch in front of Purdue cornerback Dedrick Mackey (1) for a touchdown during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue tight end Garrett Miller (88) runs in for a touchdown against Northwestern during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue wide receiver Alex Maxwell (24) is tacked by Northwestern linebacker Chris Bergin (28) on a kickoff return during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern defensive back Greg Newsome II (2) breaks up a pass to Purdue wide receiver David Bell (3) during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern wide receiver Riley Lees (19) tries to get past Purdue safety Marvin Grant (4) after a catch during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue cornerback Cam Allen (18) intercepts a Northwestern pass during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue tight end Garrett Miller makes a catch against Northwestern on his way to a touchdown during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern wide receiver Kyric McGowan (8) runs against Purdue during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue quarterback Aidan O'Connell (16) throws against Northwestern during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern wide receiver Ramaud Chiaokhiao-Bowman (81) runs in for a touchdown past Purdue cornerback Dedrick Mackey (1) during the third quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue running back Zander Horvath (40) leaps between Northwestern linebacker Chris Bergin (28) and defensive lineman Adetomiwa Adebawore (49) during the third quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Purdue quarterback Aidan O'Connell (16) fumbles the ball as he's hit by Northwestern defensive lineman Eku Leota (55) during the third quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)

Northwestern defensive back Greg Newsome II, right, breaks up a pass intended for Purdue tight end Payne Durham (87) during the fourth quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. Northwestern defeated Purdue 27-20. (AP Photo/Michael Conroy)

Purdue quarterback Aidan O'Connell (16) tries to throw as he's tackled by Northwestern linebacker Blake Gallagher (51) during the fourth quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. Northwestern defeated Purdue 27-20. (AP Photo/Michael Conroy)

Purdue wide receiver Milton Wright (0) celebrates a touchdown against Northwestern during the fourth quarter of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. Northwestern defeated Purdue 27-20. (AP Photo/Michael Conroy)

Northwestern wide receiver Ramaud Chiaokhiao-Bowman, center, celebrates a touchdown against Purdue with wide receiver Bryce Kirtz (17) during the first half of an NCAA college football game in West Lafayette, Ind., Saturday, Nov. 14, 2020. (AP Photo/Michael Conroy)