His frame is incredibly narrow and small, I dont think he weights much more than 55kg, how does he handles to survive in that condition?
That info never gets updated, although some players changed their training and diet and have become much leaner since the beginnings of their career.According to the ATP website, he is 77kg/170lb (height 188cm/6'2"): Novak Djokovic | Overview | ATP Tour | Tennis
His egs actualy do look skinny, but by the virtue of being very lean and actively flexing the muscles, they pop out in this photo. Look at Murray or Berdych for big legs on a tall guy.His legs not skinny at all