(Reuters) - South Korean An Byeong-hun, bidding for his first PGA Tour victory, took the sole third-round lead at the Phoenix Open on Saturday as defending champion Hideki Matsuyama slipped four shots behind. Scotland's Martin Laird sank an 11-foot birdie putt at the last for a matching 65 to sit one stroke behind in second place. An and Laird had a cushion over the pack, with Matsuyama (68) four strokes from the lead in a four-way tie for third. More...