- ATP Tour
Murray must curb his emotions - McEnroe

John McEnroe has warned Andy Murray he must learn to control his emotions if he is to break his grand slam duck.
The British No. 1 reached the semi-finals of all four grand slams in 2011, but is yet to win a major title.
McEnroe, who was famed for his on-court outbursts, believes Murray must not let his temper get the better of him.
"You can't afford to waste energy, the game is so physical now," McEnroe told BBC Sport. "It's difficult to wrestle with the demons inside.
"I was someone who went through periods of negative energy which helped my opponents and hurt me."
McEnroe, who is playing in the AEGON Masters event at the Royal Albert Hall this week, is confident Murray will get his hands on an elusive grand slam trophy.
"The fact Murray was knocking on the door all the time makes you more optimistic he'll finally get the breakthrough," McEnroe added.
© ESPN Sports Media Ltd.
