The Australian tennis player Nick Kyrgios got into an argument with the umpire during the second set of his round of 16 match against Stefanos Tsitsipas at the Halle Open after receiving a warning for time-wasting. Speaking after the match, Kyrgios called the situation ‘irrelevant’ and ‘stupid’. ‘I had to walk to the sidelines to get my towel. There is this thing called sweat in 30C heat that runs down on to your hands.’