Victoria Azarenka battles past defending U.S. Open champion in New York . The world No. 1 will play her first match since the birth of daughter Olympia on July 1. First time in the last four at Flushing Meadows for Belarus star . She will play Maria Sharapova or Marion Bartoli , whose match was halted by rain .
Victoria Azarenka battles past defending U.S. Open champion in New York . World No.1 Azarenka wins deciding tiebreak against Samantha Stosur . First time in the last four at Flushing Meadows for Belarus star . She will play Maria Sharapova or Marion Bartoli , whose match was halted by rain .