Pena announced on Twitter this Tuesday that he will be joining the U.S. Army Reserve this offseason.

EDGE Analysis

Pena, 34, defected from Cuba years ago and is currently an American citizen. He has apparently been contemplating joining the Army for some time, although his contract prohibits fully enlisting in the Army. While the announcement doesn't affect Pena's ability to play for the Cardinals this season, it looks like his career might not last much longer once the season is up.