Opposing quarterbacks rarely survive the Michigan defense

Following its worst performance of the year, Iowa hosts No. 3 Michigan this weekend. ESPN college football analyst Kirk Herbstreit previews what could prove one of Michigan's toughest remaining tests before their end-of-season showdown against Ohio State. (1:40)What do Trace McSorley, Alex Hornibrook and Jeff George Jr. all have in common? They are the only three quarterbacks to survive a full four quarters against Michigan’s defense this season.

Playing quarterback against the Wolverines in 2016 can be bad for your passer rating and bad for your health. The physical Michigan defense, which leads the nation in a litany of stats, including points allowed per game and passing yards allowed per…