FILE - In this Sept. 29, 2018, file photo, Northwestern's Clayton Thorson throws a pass against Michigan during the second half of an NCAA college football game in Evanston, Ill. Thorson has started 43 straight games at quarterback for the Wildcats, who face Michigan State this weekend. (AP Photo/Jim Young, File)

FILE - In this Sept. 29, 2018, file photo, Michigan's Chase Winovich, left, Michael Dwumfour, center, and Devin Bush celebrate a sack against Northwestern during the second half of an NCAA college football game in Evanston, Ill. No. 12 Michigan is undefeated since opening with a loss at Notre Dame, building momentum and confidence while waiting for its next opportunity to earn an impressive win. They won’t have to wait much longer. No. 15 Wisconsin will come to play under the lights Saturday night at the Big House in what may prove to be a pivotal game in the conference’s championship race. (AP Photo/Jim Young, File)

FILE - In this Sept. 29, 2018, file photo, Michigan's Chase Winovich reacts during an NCAA college football game in Evanston, Ill. The senior defensive end is the top player on the nation’s top-ranked defense. (AP Photo/Jim Young, File)