It is a cause close to their hearts - the Vitas Gerulaitis Foundation that commemorates the name of their old friend and gives inner city children a chance to play tennis. They will be packing a London West End club this weekend with Rod Stewart, Peter Gabriel, The Who, Wet Wet Wet and Oasis.
Up to 1,000 guests are expected for Saturday's concert which could give Wimbledon luminaries such as Pete Sampras a welcome break.
The injury-plagued Cash, back at Wimbledon to play in the doubles this year, believes rock stars and tennis players make good soul mates. "Tennis people love their music. It is their major way of relaxing. And the musos love their sport," he said.
McEnroe was initially sceptical, telling Cash: "It wouldn't be the same without Vitas." But he was soon convinced. "I'm sure Vitas is watching over this and ensuring it is a good party," Cash said.Reuse content