How Djokovic might be able to surpass Federer and Nadal

At this time last year, Novak Djokovic stood significantly behind Roger Federer and Rafael Nadal on the list of the most prolific champions ever at the major events, and slightly beneath Pete Sampras. With his 12 Grand Slam tournament titles, Djokovic was eight behind the Swiss Maestro, four back of the redoubtable Nadal, and he trailed Sampras by two. He had not taken a major since collecting…