LONDON (AFP) - Andy Murray has responded to the refugee crisis by revealing he will donate £50 (S$100) to children's charity Unicef every time he hits an ace for the rest of the year.

Former Wimbledon and US Open champion Murray made his charitable gesture after being moved by the plight of people travelling to Europe to claim asylum.

"Having seen the images broadcast on the news in recent weeks I felt I had to do something to help the millions of children and their families who have been forced to flee their homes and had their lives turned upside down," Murray wrote on his official website.

"I'll get that little bit more satisfaction from each ace I hit knowing that it will be helping Unicef keep children safe."

The world No. 3 plays for Great Britain in their Davis Cup semi-final against Australia starting on Friday and will also get the chance to add to his ace total in Shanghai, Paris and the ATP Tour Finals in November.

Standard Life, one of Murray's partners, the ATP and the Lawn Tennis Association have all announced they will match the Scot's donations pound for pound.

That means every Murray ace will result in a donation of £200 for Unicef.