Two-time Pro Bowl offensive lineman T.J. Lang announced his retirement from the NFL on Friday in a social media post.
The 31-year-old was released by the Detroit Lions earlier this month.
"For the past 3,624 days I have woken up with one goal in mind - How can I be a better pro football player than I was yesterday?" Lang wrote in a note attached to his Twitter account.
"Well, those days are over now. ... I will forever cherish the great times that I had playing this game."
Lang played 10 NFL seasons -- eight with the Green Bay Packers (2009-16) and the last two with the Lions. He was a Pro Bowl selection in 2016 for Green Bay and again the following season for Detroit.
He was limited to just six games in 2018 due to a concussion and a neck injury.
Overall, Lang played in 138 regular-season games, starting 113.
"Whatever the next chapter holds, I hope to stay around the game in some capacity," Lang said.
"It's been an amazing ride. Thank you all for being a part of it."