I thought we were changing the outline tennis player because it looks like Andy Roddick.
That is honestly the most difficult thing ever. You see that person is posing so it's perfect for the logo. I've not come across an image of Murray that would look right vectorised there. His serving technique just doesn't match.
I think most people barely give the logo a second thought so wouldn't notice or care, so I'm not too concerned. But if there is an image out there that would look right, I'd take it in a flash.