Sania Mirza entered the quarterfinals of the Japan Open with a straight set victory over Japan’s Aiko Nakamura today, according to information reaching here.Sania, sedded eighth, set up a clash with top seed Russia’s Zvonareva, who beat Shahar Peer of France 6-3, 7-5 to make it to the last eight.Continuing her fine form in the tournament, Sania thwarted the home challenge with a 6-1, 6-4 win after the match had to be postponed yesterday due to rains.
