Kelly was transported to St. Francis Hospital, where he was released Saturday night after being diagnosed with a concussion. The 48-year-old fifth-year coach will meet with doctors again before Sunday's National League Championship Series opener against the Cardinals, and the Giants said Kelly is expected to be on the field as long as he is medically cleared.
"Any time somebody gets hit in the head, you're worried," Posey said, adding that he did not see the ball hit Kelly. "He seemed to be doing all right and he was cognizant, answering questions. Any time there's a head injury, it's scary. You can't take anything for granted with that; you have to be really, really careful."
Kelly, who had been hitting ground balls to outfielders from around second base, fell to the ground and laid motionless face down after a topspin-heavy line drive from Posey cleared the second-base screen that separated Kelly from the batting practice being held at home plate. Athletic trainers helped Kelly turn over to lie on his back for a few minutes before they helped him walk off the field.
"He was just in that right place when the ball hit him," said Gregor Blanco, who had been fielding ground balls from Kelly. "It was crazy. We all just hope he's OK because it's sad and scary."
Saturday's incident came after Oakland Athletics pitcher Brandon McCarthy took a line drive to the side of his head during a game against the Angels on Sept. 5, with McCarthy having to undergo emergency surgery for an epidural hemorrhage, brain contusion and skull fracture after initially walking off the field under his own power.