COLUMBUS, Ohio — Ohio State football’s national title defense will come with a new face running the defense. The Buckeyes are losing defensive coordinator Jim Knowles. After three seasons in Columbus, he’s leaving to serve as Penn State’s defensive coordinator, according to multiple reports.

Ohio State, the first team to run the gauntlet of four playoff games on its way to the national title, celebrated with 30,000 Buckeyes fans on Sunday at Ohio Stadium.

A month of amazing memories for the Ohio State football team and its fans culminates on Sunday afternoon with a celebration. Fans came together Sunday for a rally in the stands and on the field to celebrate the Buckeyes’ national championship.

Ohio State football is returning to its home stadium Sunday for a championship celebration. Here's what you need to know about the event.

In the span of two months, Ohio State head coach Ryan Day went from being on the hot seat to a national champion. Buckeye fans were calling for Day to be fired

The departure of defensive coordinator Jim Knowles adds a challenge for Ohio State, which was already dealing with heavy roster turnover on defense.

Ohio State football just lost a talented defensive lineman in the transfer portal as Ryan Day and company begin their road to a title defense

Penn State football reportedly will make former Ohio State Buckeye Jim Knowles the highest-paid assistant coach in the nation.

Ohio State Buckeyes linebacker Sonny Styles had an incredible season and had a very strong showing in the College Football Playoff, helping Ohio State win a nat

Ohio State cornerback Davison Igbinosun will remain in school for his senior season, providing the Buckeyes with at least three returning starters from their top-ranked defense. Igbinosun revealed his plans Friday, which was the deadline for the Buckeyes' juniors to declare for the NFL draft.

Ahead of their Metropolitan Division showdown vs. the New York Islanders, the Blue Jackets arrived in Ohio State football jerseys. Here's more: