The NFL’s anti-performance enhancement drug (PED) policy has led to the suspension of Seattle Seahawks defensive end Bruce Irvin for four games.

Irvin is entering his second NFL season and was expected to become a crucial part of the Seahawks’ pass rush core after seeing substantial playing time in a rookie year that saw him record 8 sacks.

The team is already missing their starting defensive-end Chris Clemons, due to a knee injury he suffered in their playoff victory over the Washington Redskins.  It's still questionable whether Clemons will be back in time for the opening of the 2013 NFL season and Irvin was being relied upon to start in his place.

Irvin took the suspension very hard.  Irvin posted this screen shot  written out on his iPad with a message to his fans on his Twitter feed.  In it, Irvine says “I messed up and I feel so bad and have been depressed for weeks now.  I’ve had sleepless nights because I knew when this came out, I would let so many people down, including myself.”

Irvin is the fifth Seattle player to receive a four game suspension from the league for violating the substance abuse policy.  

According to ESPN  a sixth player, cornerback Richard Sherman, appealed a four game suspension and won last December when he was able to cite issues regarding his tester and the chain of custody of his urine sample.

Seattle will now rely on off-season acquisitions Cliff Avril, Tony McDaniel, and Michael Bennett to bolster their pass rush and hope that Clemons can recover quickly from knee surgery.