Last week at the China Open Flavia Pennetta defeated singles and doubles No.1s on the same day – Caroline Wozniacki and Liezel Huber – thus joining the legendary Steffi Graf as the only other player in history to achieve the feat.
In the Friday's Beijing singles quarterfinals, Pennetta upset top-ranked Wozniacki, and then, together with Gisela Dulko, beat the doubles team of Liezel Huber and Lisa Raymond in the semifinals.
Graf defeated the No.1-ranked player in singles and doubles by winning over Martina Navratilova in Berlin, in 1986, when Navratilova was on top of both the singles and doubles rankings.
Moreover, only five players in history managed to beat both the No.1s at the same tournament: Steffi Graf in 1986, Jana Novotna in 1996, Lindsay Davenport in 2008, Venus Williams in 2009, and now Flavia Pennetta. (source: WTA Tour, photo: sr_cranks)