Ever notice the stickers on an Ohio State football player's helmet during a game? Here's what to know on the Buckeyes' tradition before the CFP championship: ...

Here's how Minnesota has been honoring its fallen teammate. The Vikings have been wearing a KJ decal on their helmets all season, while head coach Kevin O'Connell and other coaches have a KJ patch ...

Both team's uniforms also one feature two of the more iconic, clean and classic helmets there are in college football, with Ohio State's classic silver sticker-adorned helmets clashing with Notre ...