SAN FRANCISCO (AP) — Lexi Thompson shot a bogey-free 5-under 66 on Saturday to take the lead into the final round of the U.S. Women’s Open for the first time in her career with a one-shot edge over teenager Yuka Saso. Thompson played a nearly flawless round in search of her first U.S. Women’s Open title in her 15th try after first competing as a 12-year-old amateur in 2007. She made three birdies on the front nine and two more on the back nine to overcome a four-shot deficit heading into the day and take the lead at 7 under.