Annika Sorenstam struggled with windy conditions Saturday but opened up a five-stroke lead at the $500,000 Nichirei Cup World Ladies tournament, her last event before playing in the PGA Tour's Colonial.

News photoAnnika Sorenstam lines up a putt on the fourth green during the third round of the Nichirei Cup World Ladies tournament on Saturday.

Heading into the third round with a one-stroke lead over Japan's Junko Yasui, world No. 1 Sorenstam carded four birdies against three bogeys for a 71 at the Tokyo Yomiuri Country Club and a 54-hole total of 9-under 207.