Maria moves into quarter finals of Stanford Classic

Russian Tennis ace Maria Sharapova shattered the dreams of fifth seed Nadia Petrova in straight sets 6-1 6-2 to move into the quarter-finals of the Stanford Classic. Sharapova came back from shoulder surgery in May with a stunning form. She was off the tour for more than 10 months. She beleaguered her fellow Russian with accurate serving, massive returns and pinpoint ground strokes. Sharapova defeated the Japanese veteran Ai Sugiyama in the first round on Monday with a three set win over the Japanese star. Sharapova, the three-time grand slam champion was never in jeopardy when playing against her compatriot Russian Nadia Petrova. Petrova is the one who stretched Maria to three sets at the French Open second round previously in this year. Sharapova will play the winner of the match between second seed Venus Williams and Russia's Alla Kudryavtseva. Australia's Samantha Stosur defeated Monica Niculescu of Romania 6-1 7-5 in other second round action on Wednesday.