Indianapolis Colts linebacker Robert Mathis will retire after Sunday's game against the Jacksonville Jaguars, ending 14 years with the NFL organisation.
Five-time Pro Bowler Mathis, 35, spent his entire career with the Colts after being selected in the fifth round out of Alabama A&M in 2003.
He has 122 career sacks - tied for 18th all-time in the NFL.
"I want to walk away, not limp away," Mathis told reporters Friday.
"Put a cap on a blessed career. Something I would have never imagined that would come to pass."
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Mathis has played in 191 career games (120 starts) notching 601 tackles, 51 forced fumbles, 16 fumble recoveries (three returned for touchdowns) and one interception.
He has four sacks in 13 games this season.
