U.S. Open 2016 Day 4 photosA collection of the best moments from Day 4 on Thursday at the 2016 U.S. Open in New York. Author:SI StaffPublish date:Sep 1, 2016U.S. Open 2016 Day 4 photosMichael Reaves/Getty Images Lucie Safarova Al Bello/Getty Images Lucie Safarova, Simona HalepAl Bello/Getty Images Andy Murray Al Bello/Getty Images Karolina PliskovaMichael Reaves/Getty Images Karen KhachanovAlex Goodlett/Getty Images Dominic ThiemMichael Reaves/Getty Images Kurumi NaraElsa/Getty Images Andy MurrayMike Hewitt/Getty ImagesMike Hewitt/Getty Images Al Bello/Getty Images Kei NishikoriKENA BETANCUR/AFP/Getty Images Joao SousaMichael Reaves/Getty Images Feliciano LopezMichael Reaves/Getty Images Venus Williams Al Bello/Getty Images Venus Williams Al Bello/Getty Images Kei NishikoriMike Hewitt/Getty Images Katerina SiniakovaMike Hewitt/Getty Images Agnieszka RadwanskaKENA BETANCUR/AFP/Getty Images Anastasia PavlyuchenkovaMike Hewitt/Getty ImagesLatest NewsNovak Djokovic Suffers Unexpected Defeat in Indian Wells vs. 20-Year-Old Luca NardiTennis Q&A: Anti-Doping Lawyer Howard Jacobs on Simona Halep’s CaseRafael Nadal Withdraws From Indian Wells Before Playing in First RoundMailbag: The Aftermath of Andrey Rublev’s On-Court Outburst and DefaultSimona Halep’s Ban Reduced: What It Means for Tennis’s Anti-Doping Policy