Mayfield was at Progressive Field with his wife, watching the Tribe face off against the Los Angeles Angels in a scoreless game.
That's when he was shown on the jumbotron wearing a Francisco Lindor jersey and proceeded to shotgun a beer, attempting to pump up the crowd.
Little did he know, this would actually ignite the Indians' bat.
After the fifth inning chug, Jason Kipnis got a 2-run home run to center, his 10th of the year, giving the Tribe a 2-0 lead.
Then later in the inning, Lindor hit the ball to almost the exact same spot, this time a 3-run shot, giving the Indians a 5-0 lead on the Angels.
Of course, video of Mayfield has already gone viral. But then again, who can be surprised? Our quarterback is already slated to become a Cleveland legend.
Twitter user @MarissaRazz707 shared video of this now viral moment with FOX 8.