If Roger Federer keeps going the way

If Roger Federer keeps going the way he’s going, he could one day be considered the greatest sportsman in history.

Update: Via email, a nomination for Pakistani squash player Jahangir Khan, who engineered a 5+ year unbeaten streak during which he won the International Squash Players Association Championship without losing a single point. (thx, abbas)

Update: Also via email, a vote for darts champion Phil Taylor, who has won 13 world titles, including 11 out of the last 13. (thx, krush)

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