The Hoosiers fell in both the AP and USA Today Coaches Poll after losing at Wisconsin and winning a close game at home against Minnesota last week.
IU fell four spots in the Coaches poll to No. 21 and three spots in the AP Poll to No. 22. Notre Dame also dropped out of the AP poll, meaning the Hoosiers no longer have a win against a ranked opponent this season.
For the first time in 167 weeks, Duke is also no longer ranked in the AP Top 25 Poll.
IU lost against Duke 94-74 in December.
IU is the lowest ranked of the five Big Ten teams in the AP Poll.
The Hoosiers have two games on the road against unranked Michigan and unranked Penn State.
Michael Hughes