Wisconsin's Chez Mellusi celebrates his touchdown run during the second half of an NCAA college football game against Penn State Saturday, Sept. 4, 2021, in Madison, Wis. Penn State won 16-10. (AP Photo/Morry Gash)

Notre Dame quarterback Jack Coan (17) throws against Purdue during the first half of an NCAA college football game in South Bend, Ind., Saturday, Sept. 18, 2021. (AP Photo/Michael Conroy)

Notre Dame head coach Brian Kelly walks to a huddle as his team plays Toledo in the second half of an NCAA college football game in South Bend, Ind., Saturday, Sept. 11, 2021. Notre Dame won 32-29. (AP Photo/AJ Mast)

Eastern Michigan's Freddie McGee III breaks up a pass intended for Wisconsin's Danny Davis III during the second half of an NCAA college football game Saturday, Sept. 11, 2021, in Madison, Wis. (AP Photo/Morry Gash)

Wisconsin head coach Paul Chryst watches during the first half of an NCAA college football game against Eastern Michigan Saturday, Sept. 11, 2021, in Madison, Wis. (AP Photo/Morry Gash)

Notre Dame wide receiver Avery Davis (3) makes a catch on his way to a touchdown against Purdue during the second half of an NCAA college football game in South Bend, Ind., Saturday, Sept. 18, 2021. Notre Dame defeated Purdue 27-13. (AP Photo/Michael Conroy)

Notre Dame running back Kyren Williams (23) runs in for a touchdown in front of Purdue linebacker Jalen Graham (6) during the first half of an NCAA college football game in South Bend, Ind., Saturday, Sept. 18, 2021. (AP Photo/Michael Conroy)

Notre Dame wide receiver Avery Davis (3) makes a catch between Purdue safety Cam Allen (10) and linebacker Jalen Graham (6) during the first half of an NCAA college football game in South Bend, Ind., Saturday, Sept. 18, 2021. (AP Photo/Michael Conroy)