In action for the first time since Monday, Serena Williams had her game grooving by the second set Thursday, defeating Anastasia Pavlyuchenkova 7-5, 6-1.
Serena Williams passed another test Monday, looking impressive in her 6-3, 6-4 fourth-round victory over a resurgent Ana Ivanovic.
In another stunning upset, Maria Sharapova, the 2006 U.S. Open champion, was ousted by No. 26 seed Flavia Pennetta, 6-3, 3-6, 6-4 Friday.
The early losses of No. 3 Maria Sharapova, No. 5 Petra Kvitova, No. 6 Li Na and No. 8 Marion Bartoli, above, was one of the themes of week one.
Spirited American teenagers Sloane Stephens (above) and Christina McHale lead a talented contingent of emerging young American players.
A travel saga kept Russia's Vesna Dolonts from arriving Stateside until just a few hours before her loss to Venus Williams.