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

Whenever Ohio State plays, it’s incredibly clear that Ohio State football players have small circular helmet stickers covering large portions of the back of the helmets around the stripes.

The practice of placing stickers on the back of helmets began in 1967 under Hall of Fame coach Woody Hayes, according to Ohio ...

So what are those stickers on Ohio State's helmets? Here's everything you should know ahead of the national championship.