Webb was limbering up with the team in foul territory on the third-base side when Hairston -- hitting inside the cage -- severely pulled the ball into foul territory.
Hairston immediately checked on Webb, who was knocked down and dazed because he didn't realize what happened. Hairston and Webb were teammates a few years ago in San Diego, and the two talked after the game.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter