When Lydia Ko first came to a U.S. Women's Open four years ago, her hands were shaking so much out of nerves. Now with two major titles under her belt by age 19, Ko is able to keep those emotions under control and project a picture of calmness on the golf course. Ko birdied the 18th hole to cap a 2-under 70 in the third round Saturday that put her in the lead at the U.S. Women's Open, bolstering her chance for her third major title in less than a year. More...