
Ivan Ljubicic, the former world No. 3 and longtime coach to Roger Federer, has described Novak Djokovic as the most difficult opponent he ever faced on court but argued that Federer and Rafael Nadal exerted a larger influence on the sport's evolution and popu…
Ivan Ljubicic, the former world No. 3 and longtime coach to Roger Federer, has described Novak Djokovic as the most difficult opponent he ever faced on court but argued that Federer and Rafael Nadal … [+4951 chars]






