SYDNEY, Jan. 8 (UPI) -- Fourth-seeded Li Na lost just one game Tuesday as the top seeds at the Apia International tennis tournament in Sydney advanced to the quarterfinals.
Li defeated Ayumi Morita 6-1, 6-0. The only game she lost came on a service break but she cashed in 6-of-14 break opportunities in six receiving games.
Even with the break, Li lost only 10 points on serve and won 69 percent of the points overall in the match.
No. 1-seeded Agnieszka Radwanska ousted Kimiko Date-Krumm 6-4, 6-3 while second-seeded Angelique Kerber stopped Galina Voskoboeva 6-2, 7-5 and No. 3-seeded Sara Errani sailed by Maria Kirilenko 6-1, 6-1. All of those winners had six service breaks on the day.