After the Dodgers clinched the NL West Thursday, they started their celebrations with champagne in the club house. Apparently that wasn't enough; they ran across the field and did cannon balls into the Diamondbacks' pool, Yahoo says.
McCain posted in response Friday, "No-class act by a bunch of overpaid, immature, arrogant, spoiled brats! The #Dodgers are idiots!"
The issue with the splash was the Diamondbacks specifically asked the team not to celebrate on their field if they won, Yahoo says.
Technically they did not, though with the strained relationship between the two teams, it's easy to see why there was so much Twitter backlash.