Sir Andy Murray came from a set down to beat Emilio Nava ©Getty Images

Picture Gallery

Third seed Maria Sakkari of Greece was upset by world number 75 Wang Xiyu ©Getty Images
Third seed Maria Sakkari of Greece was upset by world number 75 Wang Xiyu ©Getty Images
Australia's Nick Kyrgios takes a tumble during his second-round match with Benjamin Bonzi ©Getty Images
Australia's Nick Kyrgios takes a tumble during his second-round match with Benjamin Bonzi ©Getty Images
Italian Matteo Berrettini celebrates a four-set win over Hugo Grenier ©Getty Images
Italian Matteo Berrettini celebrates a four-set win over Hugo Grenier ©Getty Images
2017 US Open finalist Madison Keys needed a third set tie-break to beat Camila Giorgi ©Getty Images
2017 US Open finalist Madison Keys needed a third set tie-break to beat Camila Giorgi ©Getty Images
Australia's Alex De Minaur was a four set winner in the second-round ©Getty Images
Australia's Alex De Minaur was a four set winner in the second-round ©Getty Images
Tunisia's Ons Jabeur the fifth seed beat home player Elizabeth Mandlik ©Getty Images
Tunisia's Ons Jabeur the fifth seed beat home player Elizabeth Mandlik ©Getty Images
France's Corentin Moutet caused an upset by knocking out 21st seed Botic Van De Zandschulp of the Netherlands ©Getty Images
France's Corentin Moutet caused an upset by knocking out 21st seed Botic Van De Zandschulp of the Netherlands ©Getty Images
Coco Gauff claimed a straight sets win on Arthur Ashe Stadium in the women's singles second-round ©Getty Images
Coco Gauff claimed a straight sets win on Arthur Ashe Stadium in the women's singles second-round ©Getty Images
Men's and women's doubles matches got underway on day three at Flushing Meadows ©Getty Images
Men's and women's doubles matches got underway on day three at Flushing Meadows ©Getty Images