Clayton Thorson and Northwestern have No. 6 Ohio State in trouble again. (AP Photo/Jay LaPrete)

 

A week after losing on thhe road, No. 6 Ohio State is in trouble at home.

Northwestern and the Buckeyes were tied at 17 heading into the fourth quarter. Ohio State cannot afford another loss after falling at Penn State last week. The Buckeyes would be all but out of the College Football Playoff chase.

The Wildcats have not beaten Ohio State in Columbus since 1971.