Top-seeded Monica Seles shook off some early rustiness Wednesday before defeating Japan's Ai Sugiyama in three sets in a second-round match at the Toray Pan Pacific Open.

Seles improved to 10-0 against Sugiyama with a 7-5, 5-7, 6-1 victory in 1 hour, 55 minutes.

"I didn't have enough practice and it's been tough since the Australian Open," said Seles, who lost in the second round in Melbourne after injuring her ankle early in a three-set loss to Klara Koukalova.