Do you think Roger Federer will still be number one by year's end?

Why or why not? I personally think he will because Djokovic still doesn't have the strength or focus to play top tennis match after match and eventually burns out as he did at the end of last year. Rafa has a ton of points to defend on clay and at Wimbledon. And remember, though Roger lost badly in Indian Wells and Miami, he stilled GAINED points at these events. He could do the same in Monte Carlo and Rome if he merely makes it to the latter rounds. What do you think?