Big Ten Week 8 preview

The regular season is halfway over. Where did the time go? It's getting late early in the Big Ten race for some teams, which makes this a big week. Here's a quick preview of the Week 8 storylines:

Michigan State (4-3, 1-2 Big Ten) at No. 23 Michigan (4-2, 2-0), 3:30 p.m., Big Ten Network: Where's the threat? Or maybe we should say, are the Spartans still a legitimate threat to Michigan's Big Ten ambitions? This game has lost a lot of luster thanks to Michigan State's stumbles, but there's still plenty on the line. The Wolverines need to break a four-game losing streak in this rivalry, while MSU would be in danger of a losing season with a defeat here and Wisconsin, Nebraska and Northwestern up next. All eyes will be on Denard Robinson and a Spartans defense that has shut him down the last two years.

Penn State (4-2, 2-0) at Iowa (4-2, 2-0), 8 p.m., BTN: Raise your hand if you had these two teams atop their respective divisions midway through October. They're both doing it with defense, as Penn State is No. 2 and Iowa No. 3 in the Big Ten in points allowed, and some surprising contributors on offense (Mark Weisman for the Hawkeyes, a surging Matt McGloin and Allen Robinson for the Nittany Lions). Expect a slugfest, but hopefully one with more points than last year's 13-3 Penn State win.

Nebraska (4-2, 1-1) at Northwestern (6-1, 2-1), 3:30 p.m., ABC/ESPN2: The Cornhuskers will have had two weeks to try and figure out their defensive problems against spread teams and on the road. They will need to have answers versus a Wildcats team that beat them in Lincoln last season. Kain Colter had a great game at Nebraska last year and is the kind of mobile quarterback that has given Bo Pelini's defense fits. The loser of this one could find themselves two games back in the Legends standings.

Minnesota (4-2, 0-2) at Wisconsin (5-2, 2-1), Noon, ESPNU: It's Axe season. But can the Gophers accrue better dividends in this ancient rivalry? Wisconsin has won eight straight in the series, including the last two by a combined 47 points. The Badgers' offense also looked rejuvenated on Saturday against Purdue, which could mean this is bad timing for Minnesota. Questions about the status of head coach Jerry Kill and quarterback MarQueis Gray could linger this week for the Gophers.

Purdue (3-3, 0-2) at No. 8 Ohio State (7-0, 3-0), Noon, ABC/ESPN2: At what point do we really start to worry about the Buckeyes' defense? Probably not this week against a Purdue team that is a mess on both sides of the ball right now. The Boilermakers did beat Ohio State last year in West Lafayette, but their own defense has major issues after surrendering an average of 41 points and 385 rushing yards in their first two Big Ten contests. And now comes Braxton Miller and Co., who have scored 115 points the past two weeks. The Boilers are staring down the barrel of an 0-3 conference start, while the Buckeyes look to get to 8-0 before a showdown at Penn State.

Indiana (2-4, 0-3) at Navy (3-3), 3:30 p.m., CBS College Sports: The Hoosiers are doing a lot of things well -- especially on offense -- and have been right in every game. Yet all they have to show for it is a four-game losing streak. Maybe stepping out of conference will help, especially against a not-so-classic Midshipmen squad. Defending the option on the road presents its challenges, but Navy was shut out at home by San Jose State a few weeks ago.

Bye: Illinois