Security Was Not Playing Around With Fan Who Ran Onto Field During Yankees Game

This fan learned the hard way on Monday night that it's best to stay in your seat at Yankee Stadium. During the seventh inning of the Yankees vs. Mets, the man thought it'd be fun to hop an outfield wall and attempt to bother NY right fielder Starling Marte. That's when he was decked by security guards...

(TMZ Sports)