And the World number three is to warm up for a crack at next month’s US Open title with a special match against his comedy hero.
This week has seen Murray spending a lot of time updating his thousands of fans on the popular social networking site – with mosquitos and Hannah Montana being the main topics of conversation.
Showing off his ‘guns’
But as he prepared for his assault on the US title, Murray said: “This is my favourite tournament. I had the guys from Entourage, which is my favourite show, and Will Ferrell, whom is my favourite comedian, watching yesterday.
“You don’t get that at home.”
Murray’s habit of flexing his muscles after playing a good shot is a tribute to Ferrell’s trademark gag of showing off his “guns”.
Dunblane-born Murray will join fellow tennis ace Andy Roddick – the man who knocked him out of this year’s Wimbledon semi-final – Maria Sharapova and other celebs in the charity tournament on August 29.
Pierce O’Neil, of the US Tennis Association, said: “This year’s Arthur Ashe Kids’ Day will again bring together some of the biggest names in sports and entertainment for a fun filled day for all ages.”
Meanwhile, Murray, who has returned to his training camp in Miami to prepare for next month’s US Open, has been updating his Twitter account on a daily basis.
He and his fitness team have been playing a game involving forfeits which include being forced to watch the Hannah Montana movie and gatecrashing a private party.
He wrote: “Miles has to sit on his own at dinner 2nite. Rob had to walk two miles to lunch. No forfeits for me.”
And Murray has also been plagued by mosquitos after spending an evening playing a round of golf with pals.
He added: “I lost a pint of blood to mossies. Most aggressive insect life ever.
“Twilight golf on a tropical course seems like a good idea until you realise you’re basically playing in a swamp full of blood-sucking insects.”