Fans of both teams were quick to criticize the Yankees fan for his behavior.
The next day the A's put out a call on social media to ID the fan.
Turns out he's an Oakland native named John Spencer who's living in New York.
The Athletics even said they'd send him a care package.
But in a further twist of fate, on Friday Spencer tweeted that the Yankees fan who doused him has since apologized and taken him out for drinks.
No beers were thrown.