Andy Murray match paused as climate protestors throw large balls onto court

Murray has been stepping up his conditioning ahead of the hardcourt season in preparation for the US Open with a “brutal” new training regime in the hopes that can be the edge in long matches. ‘I mean, I got here pretty early,” he said ahead of the tournament. “We arrived on Tuesday night, so yeah, try and get used to the humidity. ‘Obviously I had quite a lot of issues last year during American summer with cramping and stuff like that. I wanted to make sure I got here early to give myself enough time to adjust to that. It’s been good. “So in preparation I was doing a lot of bike sessions. I put the bike in there and we can open the steam room a little bit to increase the humidity – obviously [turn on] the heaters to get the heat in the room up. Set it to like 35 degrees celsius and, like, 70 per cent humidity and then I would do my bike sessions in there.” MORE TO FOLLOW We’ll be bringing you the very latest updates, pictures and video on this breaking news story. For the latest news and breaking news visit:  express.co.uk/sport/football . Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you. Follow us on Twitter @dexpress_sport – the official Daily Express &  Express.co.uk  Twitter account – providing real news in real time. We’re also on Facebook @dailyexpresssport – offering your must-see news, features, videos and pictures throughout the day to like, comment and share from the Daily Express, Sunday Express and  Express.co.uk .