Murray working on his emotions ahead of Wimbledon
Andy Murray says he has been working on controlling his emotions during matches to maintain his tactical nous.
The Scot, speaking to the BBC, says his ability to "work matches out" suffers when he loses his cool - and it is something he and coach Ivan Lendl are pinpointing as he prepares for his assault on a first Wimbledon title.
"If you're getting angry and worrying about what's happened in the past, you cannot use one of your best assets," the world No. 2 said.
Roger Federer, Rafael Nadal and Jo-Wilfried Tsonga are all in the same half of the draw as Murray, who revealed on a BBC1 documentary that Lendl has been working on keeping him calm when the pressure is on.
"He's been on me during practices and in matches all the time about just trying to look forward and forget the past," Murray, who reached last year's Wimbledon final before losing to Federer, added.
The documentary also featured interviews with Andy's older brother Jamie and Tim Henman.
"I get annoyed watching [Andy] sometimes," Jamie admitted. "When he's in that frame of mind you just want to shake him a bit, but I think certainly in the last two years or so he's made a conscious effort to improve on that."
Four-time Wimbledon semi-finalist Henman added: "He could sulk with the best of them at times. He had a few incidents on the court but who doesn't? He was just playing at an incredibly high level at an incredibly young age."
Murray opens his 2013 Wimbledon campaign against world No. 95 Benjamin Becker.