Michigan football coach Jim Harbaugh speaks to the media on Monday, Nov. 19, 2018, in Ann Arbor about the upcoming Ohio State game. Nick Baumgardner, Freep
Michigan's top-ranked defense is already familiar with Ohio State quarterback Dwayne Haskins.
The Wolverines have already lost to him once.
Haskins replaced former Buckeye quarterback J.T. Barrett after Barrett suffered a knee injury in last November's game between Michigan and Ohio State.
When Haskins entered the game, there were just over three minutes remaining in the third quarter, and the Wolverines held a 20-14 lead.