Newtown Square, Pennsylvania – Jon Rahm apologized to a volunteer at the PGA Championship after hitting him with a divot on the seventh hole during Thursday's first round at Aronimink. The two-time major winner from Spain intended to make an air swing in frustration after a poor shot but instead dug out a patch of grass that flew into the air and struck the volunteer. "I got a flier on my second shot that went long," Rahm said. "It's not a good spot. "Just out of frustration, I tried to make an air swing, just over the grass, and I wasn't looking, took a divot, and unfortunately, I hit a volunteer." Rahm rushed over to apologize after the lump of grass struck the man in the shoulder and face. "Unfortunately it hit him in the shoulder and then the face, which I couldn't feel any worse," he said. "That's why I was there apologizing." Rahm intends to make amends with a further gesture. "I need to somehow track him down to give him a present because that's inexcusable.…