For the last four years, the Ohio State football team hasn't been able to take down TTUN. It has been a mental block that Ryan Day has had to deal with. Last year's loss at home was the most embarrassing loss of them all, but it did propel the Buckeyes to win the national championship.
Since that loss, the Ohio State Buckeyes have looked like a different team. They ran through the College Football Playoff without any issues, haven't lost this season, and are the clear-cut best team in the country. Of course, they still have to beat TTUN in a couple of weeks.