Andy Murray believes tennis players on tour have a ‘responsibility’ to get the Covid-19 vaccine and feels they will continue to face stricter conditions at tournaments if they decide against it. The 2012 US Open champion addressed the media in his pre-tournament news conference on Saturday. The sport faces a possible reckoning over its low rate of vaccination among tour professionals, widely believed to be below 50%. Murray plays the No 3 seed, Stefanos Tsitsipas, in the first round.