'Cry baby' Tsitsipas REFUSES to play then tells umpire 'I hope you get FIRED'

STEFANOS TSITSIPAS faced old nemesis Daniil Medvedev in the last 16 at the Shanghai Masters. But after they put their differences aside to pose for a pre-match photo - prompting audible gasps from the crowd - the Greek star lost his rag with a spectacular meltdown.