Worthy, who led KC's receiver position with 59 catches and 638 yards as a rookie last season, initially was injured Tuesday when he banged his head on the turf while attempting to make a deep sideline catch. He briefly went to the medical tent afterward.

Kansas City Chiefs wide receiver Xavier Worthy cleared the concussion protocol and was back at practice on Friday, a good sign for a wide receiver group that has had its share of bumps and bruises throughout training camp.

Chiefs coach Andy Reid rejects previous report on Xavier Worthy's injury as the star receiver returns to training camp