The Big Ten is one of only two conferences in the nation to have four or more teams ranked in the top 20 of the Associated Press (AP) poll that was released on Monday, trailing the Big East's five top-20 squads. It will mark the seventh time this season the Big Ten has had four teams ranked in one or both weekly polls. Ohio State climbs one spot to No. 9 after a pair of home wins last week, while Purdue remains steady at No. 13 heading into Monday's game against Michigan State. Penn State jumps four spots to No. 18 after claiming two wins last week, while Nebraska moves up one spot to No. 19. Michigan is among other squads also receiving votes.