Britain's Kyle Edmund shocked Richard Gasquet on day one at the US Open ©Getty Images

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Richard Gasquet of France, seeded 13, was comprehensively beaten by the Briton ©Getty Images
Richard Gasquet of France, seeded 13, was comprehensively beaten by the Briton ©Getty Images
Novak Djokovic needed treatment on an arm injury before he battled through to reach round two ©Getty Images
Novak Djokovic needed treatment on an arm injury before he battled through to reach round two ©Getty Images
Spaniard Rafael Nadal swept aside Denis Istomin of Uzbekistan ©Getty Images
Spaniard Rafael Nadal swept aside Denis Istomin of Uzbekistan ©Getty Images
Dustin Brown of Germany was comfortably beaten by Canada's Milos Raonic ©Getty Images
Dustin Brown of Germany was comfortably beaten by Canada's Milos Raonic ©Getty Images
Angelique Kerber of Germany progressed after Polona Hercog of Slovenia retired hurt during their first round clash ©Getty Images
Angelique Kerber of Germany progressed after Polona Hercog of Slovenia retired hurt during their first round clash ©Getty Images
Spain's Garbine Muguruza survived a scare as she fought back from a set down to beat Elise Mertens of Belgium ©Getty Images
Spain's Garbine Muguruza survived a scare as she fought back from a set down to beat Elise Mertens of Belgium ©Getty Images
Italy's Roberta Vinci, last year's runner-up, also safely reached round two ©Getty Images
Italy's Roberta Vinci, last year's runner-up, also safely reached round two ©Getty Images
Madison Keys of the United States beat compatriot Alison Riske to book her spot in the second round ©Getty Images
Madison Keys of the United States beat compatriot Alison Riske to book her spot in the second round ©Getty Images
Flushing Meadows has welcomed the world's top players for the final Grand Slam of the season ©Getty Images
Flushing Meadows has welcomed the world's top players for the final Grand Slam of the season ©Getty Images