Tsvetana Pironkova

Serena Williams returns a shot during the US Open at USTA Billie Jean King National Tennis Center. (Photo by Al Bello/Getty Images)

Serena Williams Advances Into US Open Quarterfinal

Serena Williams moved on into the US Open quarterfinal. Will she go on to win a 4th US Open championship?

09/03/2012

Ana Ivanovic of Serbia returns a shot against  Tsvetana Pironkova of Bulgaria during Day Eight of the 2012 US Open at USTA Billie Jean King National Tennis Center on September 3, 2012.  (Photo by Al Bello/Getty Images)

Ivanovic Into US Open Quarterfinal

Ana Ivanovic reached the US Open quarterfinal and could be matched-up against Serena Williams.

09/03/2012