After Serena Williams, Stefanos Tsitsipas has a go at umpire at US Open: 'You're all weirdos'
August 28, 2019 10:38 ISTThe umpire told Stefanos Tsitsipas it was time to play, but Tsitsipas was still reaching into his bag for a new headband and screamed at Damien Dumusois that he still needed time to change.