Last year, Eunjung Yi birdied the first playoff hole to defeat Morgan Pressel and collect her first LPGA Tour win. Pressel made a final-round charge by shooting a 67 to tie Yi at 18-under 266, but she could only manage a par in the playoff. Both players will return this year to lead a field that also includes past champions Paula Creamer, Mi Hyun Kim and Meg Mallon, but not five-time winner Se Ri Pak. Cristie Kerr, who became the first American woman ranked No. 1 in the world after her 12-shot win at the LPGA Championship, will not be in the field. Nor will No. 2 Ai Miyazato, leaving third-ranked Jiyai Shin as the top player in the field. Next week is the third major of the season, the U.S. Women`s Open, which was won by Eun Hee Ji last year.