Back to
Posted 5/1/12 at 12:45 PM

Phillies fans may recognize the newest member of the Avengers

Captain America. Iron Man. The Incredible Hulk. With earth facing an enemy unlike any seen before, humanity's elite group of superheroes has assembled.

And according to David Letterman, even the Avengers have a secret weapon. Play the clip above to find out who it is.

Select City:  


@MLB on Twitter

Join the Conversation »