Former women's world No. 1 Ai Miyazato was in a confident mood Tuesday as she geared up for the U.S. Women's Open, the third major tournament of the season.Miyazato, who has announced that she will retire at the end of this season, will be taking part in her first U.S. Women's Open in three years. She could only manage 36th at the Women's PGA Championship earlier this month but believes she is in with a shot of winning an elusive first major title.Golf: Miyazato in U.S. Women's Open practice round"This tournament helped me develop as a player," Miyazato said at practice. "My shots are good and I think I am in with a chance," said the Okina…READ FULL ARTICLE