KANSAS CITY, Mo. -- Linebacker Tamba Hali has been activated off the physically unable to perform list and will join the Kansas City Chiefs for practice on a limited basis Tuesday.

Hali missed all of training camp after having offseason knee surgery. Hali's balky knees have prevented him from practicing much during either of the past two seasons.

His return means the Chiefs get back half of their standout pass-rushing tandem of Hali and Justin Houston. The Chiefs are unlikely to have Houston available when they begin the regular season on Sept. 11 against the San Diego Chargers at Arrowhead Stadium. Houston had ACL surgery in February.

Hali, 32, is a five-time Pro Bowl pick. He is tied for 48th on the NFL's all-time sack list with 86.