Bryce Harper and Jimmy Fallon battled in MLB: The Show Home Run Derby and there was drama

A fierce head-to-head battle unfolded in front of millions on Wednesday night -- and no, I'm not talking about the night's slate of MLB action.

Phillies superstar Bryce Harper was a guest on "The Tonight Show Starring Jimmy Fallon," and he and Fallon faced off in an epic battle ... in front of a television set.

Picking up their controllers, the two dueled in a Home Run Derby on MLB: The Show, which of course features Harper on its cover this year. Harper batted as himself, while Fallon selected the Yankees' Aaron Judge (after receiving a real-life video chat of encouragement from Judge).

.@AaronJudge gives Jimmy a pep talk before his #MLBTheShow game! #FallonTonight pic.twitter.com/mxL5NIXuMd

— Fallon Tonight (@FallonTonight) April 25, 2019

Then, the battle was on ... with Fallon pulling off an epic comeback victory:

Drama!