He's a good player, but unfortunately he is playing in an era with three of the potentially strongest players of the modern era, Federer, Nadal, and Djokovic. I don't really see Murray beating any of those with any sort of regularity, as he just doesn't have the game, yet. Maybe a couple of years down the line he will be a genuine contender, but right now, I would expect him to lose this game eight times out of ten.