Michigan's David Ojabo loses his helmet as he stops Wisconsin's Jalen Berger during the second half of an NCAA college football game Saturday, Oct. 2, 2021, in Madison, Wis. (AP Photo/Morry Gash)

Wisconsin running back Jalen Berger (8) slips past Notre Dame linebacker Bo Bauer during the second half of an NCAA college football game Saturday, Sept. 25, 2021, in Chicago. Notre Dame won 41-13. (AP Photo/Charles Rex Arbogast)