The Tennessee Titans activated tight end Delanie Walker from the physically-unable-to-perform list Monday.
Walker was placed on the PUP list at the start of training camp after having arthroscopic knee surgery.
Walker was injured early in organized team activities but participated in the June minicamp. The Titans decided to address the issue during the summer with surgery to avoid lingering problems with the knee during the season.
Walker is in his first season with the Titans after signing as a free agent. He spent the first six seasons of his career with the San Francisco 49ers.
Last year, Walker had 21 receptions for 344 yards with three touchdowns.
It is not clear if Walker will play in any of the Titans' two remaining preseason games.