Lest you think this is an obituary and are looking for a year after the hyphen, let me be clear that I do not think Federer is finished. A champion of his magnitude does not just go away. But there will be no more mind-boggling streaks, no more three-slam years; the road has and will become more challenging physically, and especially, mentally. Is he able to stay healthy and agile in the coming years? Can he overcome wavering confidence and withstand opponents' newfound belief? Will he scrap and claw like other mortals to gut out matches and realize that he actually needs to improve his game and strategy to turn the tables on Nadal, let alone break Sampras' mark of 14 majors victories?