Historic linebacker James Harrison, who played for the Baltimore Ravens, Cincinnati Bengals, New England Patriots and Pittsburgh Steelers, announced his retirement from professional football, after serving 15 seasons in the United States National League (NFL).

Harrison, who had already announced his retirement in 2014 and later left it to return to the Steelers, reported Monday that he is definitely withdrawing from the gangs, at 39 years old.

“I have missed a lot of things for a long time. This is it. I want to thank my family, coaches, and fans, everyone who played a role in my life in football,” Harrison said in remarks to the official website of the NFL.

During his time in Pittsburgh, the Akron, Ohio native enjoyed his best moments in the league, having been named a defensive back in 2008. He appeared five times in the Pro Bowl and three on the Al-Pro team and during his 10 seasons with Steelers became the all-time leading quarterback sack with 80.5.