Top-seeded Maria Sharapova routed Shenay Perry 6-0, 6-2 in the Cellular South Cup on Monday.
The Williams sisters are choosing football over Fed Cup.
Serena Williams started the defense of her Australian Open title with a dominating 6-2, 6-1 win Tuesday over Polish teenager Urszula Radwanska.
Amelie Mauresmo made a comfortable start to her Australian Open defense with a 6-3, 6-4 first-round victory over American Shenay Perry on Monday.
Marion Bartoli of France and American Shenay Perry will meet in the Bell Challenge quarterfinals for a second successive year after straight-sets wins on Wednesday.
Shenay Perry continued her breakout season with a 6-2, 0-6, 6-3 victory over fifth-seeded Daniela Hantuchova in the first round of the Bank of West Classic.
Seventh-seeded Elena Dementieva cruised into the Wimbledon quarterfinals on Monday, overwhelming American Shenay Perry 6-2, 6-0.
After dropping the first set to No. 10 Nicole Vaidisova, Na Li rallied to win her fourth-round match and become the first Chinese woman to reach the quarterfinals of a Grand Slam event.
Unseeded American Shenay Perry's run at the French Open ended with a straight-sets loss on Saturday. Still, the 21-year-old American was just happy to be at Roland Garros.
Andy Roddick was one of five American men who could not find their form on the clay. Now the U.S. hopes are riding on James Blake and relatively unknown Kevin Kim.
Third seed Amelie Mauresmo, twice a semifinalist at Wimbledon, sailed into the final 16 on Friday.