Former Ravens wide receiver Derrick Mason officially announced his retirement from the NFL after 15 seasons.  “I’m done,” Mason told Aaron Wilson of after a difficult 2011 campaign.

Mason was cut by the Ravens after the NFL lockout and was signed in New York by Rex Ryan and the Jets.  In October, the Jets traded Mason to Houston after he reportedly frustrated with his playing time in New York.  After the Ravens beat the Jets in week four, Mason told reporters that there were “cracks” in Brian Schottenheimer’s offense.  A week later he was gone, shipped to the Texans for a seventh-round draft pick.

Houston cut Mason in December and on Monday he announced he was calling it quits.  Mason’s departure from New York probably looked worse in October than it does now after their epic collapse.  As a guy who was always known for talking, Mason made sure that people knew he wasn’t the problem in that locker room.

“They were a mess. It was a cluster you-know-what,” Mason told Wilson.  “If I was the problem, it would have stopped. I wasn’t the cancer in the locker room.”