"I am honored and humbled to officially conclude my NFL playing career as a member of the Kansas City Chiefs," Kennison said in a statement. "My family is extremely grateful to the Hunt family, Scott Pioli and the Chiefs organization for making this moment possible. Kansas City has a special place in our hearts, and has truly become our home. I feel very blessed to have been extended the opportunity to retire as a member of the Chiefs."
Kennison ranks seventh in Chiefs franchise history with 5,230 yards and his 321 receptions are the eighth-most in team history. In addition, he had 17 100-yard receiving games in his time with the Chiefs, the fourth-most in franchise history.
He did not play last season after being released by the Chiefs after the 2008 season.
Kennison, who played collegiately at LSU, was the 18th overall pick of the 1996 NFL draft by the Rams.