SAN DIEGO (AP) _ San Diego Chargers quarterback Jim Harbaugh left Sunday's game against the Kansas Chiefs with a bruised right elbow and wide receiver Jeff Graham sustained a concussion on the next play.

A third starter, cornerback Charles Dimry, left with a sprained right knee early in the second quarter and wasn't expected to return.

Harbaugh landed on his right side when he was hit by defensive end Eric Hicks after releasing a pass late in the first quarter. He was taken into the locker room and the team said his return was questionable. Harbaugh returned to the bench early in the second quarter with his elbow wrapped as Erik Kramer remained in the game.

On the first play after Harbaugh was hurt, Kramer threw a long pass to Graham. The pass was broken up by Eric Warfield and Graham hit his head on the turf. His return was questionable.