To put it into tennis terms, Colbert is Love. 

To win the US Open is to win eternal glory, worldwide admiration, and the opportunity to serve tennis balls right at Stephen Colbert. 

"In this scenario, I'm the new Captain America, and you're the captain of Hydra's tennis team," Colbert stated, as he squatted behind Cap's adamantium shield. Turns out that the winner of one of the most important tennis tournaments has a great arm, and Colbert got served. 

Apologies to everyone who had bet on Roger Federer to ultimately beat up Colbert. 

Sources: YouTube