US tennis player Serena Williams returns the ball during her match against Poland's Agnieszka Radwanska at the German Open WTA tennis tournament in Be - Foto

US tennis player Serena Williams returns the ball during her match against Poland's Agnieszka Radwanska at the German Open WTA tennis tournament in Be - jueves 8 mayo, 04:58 PM
rlin, Thursday, May 8, 2008.