For Michigan football, Big Ten play started, and the Wolverines were able to erase the bad taste out of their mouth after a Group of Five struggle session offensively in Week 3.
Week 4 brought Rutgers to town, and the undefeated Scarlet Knights met the same fate as the rest of the Wolverines’ opponents: a 20-something-point loss. But that was just one game on the schedule, as the week that was saw the biggest games yet this year.
Ohio State went to Notre Dame, Penn State hosted Iowa, Clemson played Florida State, and more.
ESPN updated its power rankings after Week 4. Here is who the worldwide leader sees as the best of the best through four games.