1. Michigan State (8-0, 5-0 Big Ten)
After his 197-yard, five-TD game vs. Michigan, Kenneth Walker III might be practicing his stiff-arm stance. Last week: 3
2. Ohio State (7-1, 5-0)
Buckeyes were pushed by Penn State but prevailed late. Now they trek to Nebraska. Last week: 1
3. Michigan (7-1, 4-1)
Wolverines defense faces questions after Spartans rally from 16-point second-half deficit. Last week: 2
4. Gophers (6-2, 4-1)
Illini already have two Big Ten upset wins, so Gophers mustn't look ahead to Iowa. Last week: 6