Maria Sharapova is continuing her comeback by going past fifth seed and world No.10 Nadia Petrova 6-1 6-2 to advance to the quarterfinals of the Bank of the West Classic.
The 62nd-ranked Sharapova beat Petrova for the second time since returning from shoulder injury, having also won over the fellow Russian in the second round of Roland Garros.
Her 18th match since coming back from the injury Sharapova will play either against Venus Williams or Alla Kudryavtseva.
Also advancing to the quarterfinals were third seed Elena Dementieva who defeated Maria Kirilenko 6-1 6-2, Daniela Hantuchova who upset seventh seed Agnieszka Radwanska of Poland 4-6 7-6(6) 6-1, and Samantha Stosur who beat Monica Niculescu 6-1 7-5. (photo: Ralf Reinecke)