Tennis-U.S. Open women's singles round 4 results

Sept 2 (Infostrada Sports) - Results from the U.S. Open Women's Singles Round 4 matches on Monday 16-Victoria Azarenka (Belarus) beat Aleksandra Krunic (Serbia) 4-6 6-4 6-4 17-Ekaterina Makarova (Russia) beat 7-Eugenie Bouchard (Canada) 7-6(2) 6-4 1-Serena Williams (U.S.) beat Kaia Kanepi (Estonia) 6-3 6-3 11-Flavia Pennetta (Italy) beat 29-Casey Dellacqua (Australia) 7-5 6-2