1. Ohio State (10-0; at Wisconsin)

The Buckeyes have allowed three pass plays of 70-plus yards.

2. Nebraska (8-2; vs. Minnesota)

Kicker Brett Maher: 45-45 on extra points.

3. Michigan (7-3; vs. Iowa)

Only Big Ten team that hasn't allowed run of 40-plus yards.

4. Northwestern (7-3; at Michigan State)

Venric Mark is lone Big Ten punt returner with two touchdowns.

5. Wisconsin (7-3; vs. Ohio State)

Allowed 15 red-zone touchdowns in 22 drives.

6. Penn State (6-4; vs. Indiana)

Best red-zone defense: no points 32.4 percent of time.

7. Michigan State (5-5; vs. Northwestern)

Only 17 points total in first quarter of past eight games.

8. Iowa (4-6; at Illinois)

Must beat Michigan and Nebraska or no bowl.

9. Minnesota (6-4; at Nebraska)

Thirteen takeaways in six wins; one takeaway in four losses.

10. Purdue (4-6; at Illinois)

DL Kawaan Short has blocked four kicks this year.

11. Indiana (4-6; at Penn State)

0-15 all-time against Nittany Lions.

12. Illinois (2-8; vs. Purdue)

Only team in FBS to lose every conference game by 14-plus points.