Kemp ran into the wall trying to track down a triple by Josh Rutledge. He turned into the padding while running full speed and fell backward onto the warning track.
He stayed down for several minutes as team trainers checked him over. He got up, took a drink of water and initially stayed in the game. Not for long.
He left the ballpark to have precautionary X-rays on his jaw, the Dodgers said. The team said he had no concussion symptoms.