After 12 seasons in the NFL, DeMarcus Ware has confirmed he is hanging up his cleats.
The 34-year-old pass rusher, who became a free agent this year after three seasons with the Denver Broncos, took to Twitter on Monday to announce his decision, saying he has "decided to accept the unknown."
"Tempting opportunities still present themselves for me to play and I feel better than I have in years," Ware wrote.
"However, (long-term) health and quality of life outweigh the spark and passion to play that I once had.
"I thank the Dallas Cowboys and Denver Broncos for opportunities to experience what greatness feels like."
Ware, who played for the Cowboys for the first nine seasons of his career, was reportedly contemplating a return to Dallas for a 13th NFL campaign.
A nine-time Pro Bowl selection, he won a Super Bowl ring with the Broncos in 2015 and is eighth on the NFL's all-time sacks list with 138.5, having led the league in 2008 and 2010.
Ware's 2016 season was the roughest of his career. He was limited to 10 games and recorded just 15 tackles and four sacks behind Von Miller and Shane Ray.