PARIS (Kyodo) Japan's Shinobu Asagoe outlasted Gisela Dulko of Argentina to reach the fourth round of the women's singles at the French Open on Saturday.
Asagoe, ranked 51st on the WTA tour, reached the last 16 at a Grand Slam for the second time with a 7-5, 4-6, 6-4 triumph over the 61st-ranked Dulko at Roland Garros.
Asagoe, who reached the fourth round in 2003 at Wimbledon, committed 42 unforced errors compared with Dulko's 84 and broke her Argentine opponent six times to set up a meeting with second-seed Serena Williams.
"I wasn't really sure what happened at the end of the match. I didn't believe it," Asagoe said.
"In the third set, I just tried to concentrate on making each point. I've never played Serena before but I'll just have to play my best tennis," she said.