Paul Posluszny's playing days are over.
The Jaguars on Tuesday announced the veteran linebacker is retiring after 11 seasons in the NFL.
In a lengthy farewell letter, Posluszny, 33, admitted his game was on the decline and humbly thanked those who supported him throughout his career. The Pro Bowl player and five-time defensive captain was to become an unrestricted free agent Wednesday after spending the last seven seasons in Jacksonville.
"Today is a difficult day for me, but it is also a day of reflection and gratitude," Posluszny wrote. "Playing for Mr. Khan, the Jacksonville Jaguars and the city of Jacksonville has been a tremendous honor. During my seven years as a Jaguars player, I’ve always pursued success and winning football games, while preparing and training with the highest standards of competition, passion and perseverance. It has been an honor to represent my family, my teammates and the people of Jacksonville.
"With much sadness but without regret, I realize that I am no longer able to adhere to the unwavering standard of excellence that professional football demands. I say this with a heavy heart: I am retiring from the NFL. I love the game of football so much, and I know there is truly only one acceptable way to play. Knowing I can no longer compete at a level that I find acceptable, I have chosen to end my football career."
Posluszny was selected by the Bills in the second round of the 2007 NFL Draft and remained in Buffalo until he signed with Jacksonville in 2011. He ends his career as the Jaguars' second-leading tackler in franchise history (973), trailing only fellow linebacker Daryl Smith (1,089). His 192 stops in 2011 rank fourth in the organization and his 231 tackles in 2012 set single-season team record.
Posluszny's full retirement letter can be read here.