AMELIE MAURESMO is confident Andy Murray is approaching top form as he prepares for his quarter-final showdown against Vasek Pospisil at lunchtime today.

However, she has warned the British No.1 can take nothing for granted against the unseeded Canadian on Centre Court.

Frenchwoman Mauresmo, a former Wimbledon winner, has been Murray’s coach for a year now and thinks the Scot is in far better shape to compete for major titles than he was 12 months ago, when he was still recuperating from back surgery.

“He’s doing great,” said Mauresmo, who will take a break from her coaching duties soon after Wimbledon to have her first child.

“Yesterday” – Murray’s fourth-round match on Monday against Ivo Karlovic – “was a pretty big test, as always against Ivo and especially on grass.

“I think he did great. I think he handled many different moments in the match in a very good way. The focus and the concentration that you need to have against this guy are very high and he did that very well. Also the physical intensity was great.

“A lot of things [are better than a year ago]. For him, on the court, feeling fit and thanks to the medical part of the team, the teamwork has been going well. That already makes a big difference.

“When you feel strong physically on court then you are capable of using everything in your armoury out there. For a guy like Andy, it makes a big difference.

“He’s in a good place, but it’s still a long way and it’s still important right now to look at one match at a time. Everything is going great, but it doesn’t mean it’s all gonna happen just like that [snapping her fingers] on the court, so let’s see. You have many guys out there that can win this tournament and it’s going to be tough.”

Twenty-five-year-old Pospisil is appearing in the quarter-finals of a Grand Slam singles event for the first time, although he did win the doubles here last year with Jack Sock.

Mauresmo thinks he will come out swinging against Murray in the belief that he has nothing to lose.

“Although it’s the first time for him at this level of a tournament, I think he’s going to go out there and just go for his shots. He’s a big guy, he can really release some big shots on the serve and on the forehand. He can come forward as well, good at the net. He’s a pretty consistent overall player. This one needs to be taken very seriously.”

Murray was subjected to a lot of sceptical comment last year when he became the first leading male player to hire a female coach, but Mauresmo is happy with their working relationship.

“I would not have stayed around if the human part of the relationship wasn’t going to be good,” she continued. “I would also not stay around if the results were not good or if he wasn’t happy with that.

“I’m happy because he is such a hard worker. Since we met again in December in Miami, he has put in so much effort in his daily practice, recovery, food, whatever you can think of. He’s a great guy to work with.”

Murray recruited Mauresmo after his previous coach Ivan Lendl said he could not commit himself full-time, so after the Frenchwoman became pregnant she thought it was important to have some continuity in the work she and the British No.1 were doing.

That is where Jonas Bjorkman comes in. Mauresmo believes that she and the Swede, who was appointed recently to cover for her maternity leave, work well together as joint coaches, and does not think there is an issue about which of them makes the final decision about tactics.

“Since I had the experience of going through a Grand Slam with Andy we talk a lot anyway, about the matches and practice and how we want to prepare, but I kept the same routine and he is now on board and things are quite smooth.

"It’s not about boss or not boss, it’s about how Andy is going forward in these tournaments. It’s more of a dialogue between the three of us, rather than ‘You’re gonna do this, you’re gonna do that’.

“Andy has pretty much everything in his game. As coaches, that’s pretty nice. It’s a privilege.

“I definitely wanted Andy and us to find someone that would fit him and the team and would carry on the good work that he’s been doing and putting in the last few months.

"To be able to work together here was important for everyone. Then to know Andy is going to be fine, that Jonas is there, and he knows, and everything is going to be taken care of – it makes me feel good.”