After Wisconsin had to hang on to beat Northern Iowa 26-21 in the season opener at Camp Randall on Saturday, the Badgers dropped in the A.P. Top 25 College Football poll.
The Badgers are 13th this week and will face Oregon State on the road on Saturday.
Michigan State moved up to 11th, Ohio State is 14th, Nebraska is 16th and Michigan dropped from 8th to 19th after their loss to Alabama last Saturday.