Saturday shake-up in Big Ten

What it means with three weeks left in the regular season:

East Division: Ohio State came in outside the top four in the first CFP rankings, and its 31-point loss to Iowa will sink the Buckeyes further. Ohio State dropped into a first-place tie with Michigan State, its next opponent. Penn State, ranked No. 2 in the country just two weeks ago, has suddenly lost two in a row.

West Division: Wisconsin (9-0) becomes the final Big Ten team without a conference loss and could leap-frog No. 6 Ohio State and No. 7 Penn State in the CFP rankings — it began at No. 9. Beat Iowa at home next weekend and the Badgers will clinch the West title and their fifth trip in seven years to the Big Ten title game.