Phillies star Bryce Harper is cheering on the Buckeyes at the national championship game, and he has a good reason.

Philadelphia Phillies star Bryce Harper was spotted on the sidelines of Monday night's College Football Championship donning Ohio State gear. But why?

LeBron James was in attendance at Mercedes-Benz Stadium to watch his beloved Ohio State Buckeyes play Notre Dame for the College Football Playoff championship

LeBron James maintains strong ties to his home state of Ohio. ATLANTA (AP) — LeBron James was in attendance at Mercedes-Benz Stadium to watch his beloved Ohio State Buckeyes play Notre Dame for the College Football Playoff championship Monday night. The Buckeyes defeated The Irish 34-24 for its first national championship since 2014.

LeBron James and Bryce Harper headline Ohio State fans at Monday's CFP championship game vs. No. 7 Notre Dame. Here's more:

Los Angeles Lakers superstar LeBron James and Philadelphia Phillies slugger Bryce Harper were in attendance for Monday night's College Football

We've already seen the likes of Travis Scott and Joe Montana down on the sidelines during pre-game warmups, and cameras have also caught pro stars LeBron James and Bryce Harper in attendance as well. Harper was seen down on the field before the game, while James was up in a suite waiting for the game to start.

LeBron James was in attendance at Mercedes-Benz Stadium to watch his beloved Ohio State Buckeyes play Notre Dame for the College Football Playoff championship.