Mickelson chases and swats moving ball with putter at U.S. Open

SOUTHAMPTON, N.Y. - In an apparent act of frustration, Phil Mickelson chased after his moving ball on the 13th green Saturday at Shinnecock Hills and struck it before it could get farther from the hole.

Doing so is a breach of Rule 14.5 which prohibits a player from hitting a moving ball. It's a two-stroke penalty and in some cases could lead to disqualification. Mickelson, who was celebrating his 48th birthday on Saturday, continued to play on.

Mickelson was given a 10 for the par-4 hole. He was attempting a bogey putt when he missed it badly to the right of the hole, then chased after it as it moved down a slope. The 5-time major champion then struck the ball back at the hole, saw it lip…