08/07/2011 09:31 am ET Updated Dec 06, 2017

John Krasinski Shows Off Bikini Body In Latest Red Sox-Yankees Ad (VIDEO)

It's a rivalry that keeps bringing the funny. While the New York Yankees and Boston Red Sox have been battling it out this weekend, baseball fans Alec Baldwin and John Krasinski have taken their friendly feud to the next level.

In the latest New Era ad, Krasinski finds a Photoshopped photo of himself in a Yankees bikini on display at Yankee Stadium. Sure, it's embarrassing, but it probably stings even more because Baldwin is behind the prank.

The actors seem to be upping the ante with their New Era ads, which showcase the historic rivalry between Beantown and The Big Apple.

The trash talking began back in April, and has continued with a punch and, uh, a painted dog.

Now that Krasinski inadvertently bared it all on the Yankee's JumboTron, we can only imagine how he'll retaliate.