Legendary coach Patrick Mouratoglou believes Andy Murray can return to once unbeatable form of the past as the former world No.1 sets his sights on the grass court season.

Mouratoglou praised the three-time grand slam champion in an interview for Sky Sports in the UK, saying Murray “wants to wants to get back to his best”.

“I think he’s an incredible champion, but I also think that his body is really tough on him,” Mouratoglou said.

“Every time he feels ‘wow, finally, I can start playing’ then he has bad news about his physicality which stops him.

“If he continues to stop and start all the time, it’s very difficult because he makes progress and his fitness starts to be at a level.

“He needs competition. He starts, but then ‘boom’, he stops again and then he restarts almost from scratch because when you do nothing for a few weeks you lose all the benefit of what you’ve done.

“I think he’s incredibly courageous to be honest, because he’s had a lot of setbacks with his body and he’s still here. He shows how much courage he has, which we knew already, but also how much he loves the game.”

Murray is hoping to play in Nottingham in early June before playing Queen’s Club on June 14 and then Wimbledon, from June 28.