The Williams sisters once again proved why they are the best two players in the history of women's tennis. Until you beat them, you're not an elite player. That's something Ana Ivanovic—who is now 0-5 against Serena and Venus—will have to figure out.
In other tennis today: David Ferrer and Juan Ignacio Chela both move on. Robby Ginepri is up a set.
Justine and Djokovic tonight.
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