Flavia Pennetta is now 3-1 against Venus Williams, after defeating her today in the Kremlin Cup, 6-4, 2-6, 6-4.
Today's other upset win was performed by qualifier Sara Errani, who defeated Victoria Azarenka, 1-6, 6-4, 6-3.
The draw in Moscow is as competitive as it was in Stuttgart. Also falling in the first round today were Li Na, Maria Kirilenko, Francesca Schiavone, and Alona Bondarenko. They were taken out, respectively, by Svetlana Kuznetsova, Vera Zvonareva, Daniela Hantuchova, and Katarina Srebotnik.