Victoria Azarenka reflected on Covid double standards at Flushing Meadows as Sloane Stephens urged an end to bathroom break ‘gamesmanship’

Second seed Daniil Medvedev came through in straight sets against Germany’s Dominik Koepfer at Flushing Meadows

Novak Djokovic survived a scare to beat Danish qualifier Holger Rune at the US Open and move a step closer to the grand slam

Fourth seed Karolina Pliskova opened her US Open challenge with a straight-sets victory over the American teenager Caty McNally

Sloane Stephens beat Madison Keys in a repeat of the 2017 US Open final as Simona Halep and Garbiñe Muguruza also survived tough openers

Third seed Stefanos Tsitsipas survived a huge scare in the opening round of the US Open to see off Andy Murray in five sets