• World No 91 Norrie stuns world No 15 Stefanos Tsitsipas • Katie Boulter helps win decisive mixed doubles match Cameron Norrie and Katie Boulter beat Stefanos Tsitsipas and Maria Sakkari 4-3, 3-4, 4-3, including 5-4 in a tiebreaker in the deciding mixed doubles set in the Fast4 format, to give Britain a 2-1 win over Greece in the opening match of the eight-team Hopman Cup in Perth. Related: Australian Open introduces extreme heat policy ahead of scorching summer Continue reading...