MADRID — Novak Djokovic, winner of a record 24 Grand Slam titles, says he can feel the changes taking place in tennis. People have started to accept, he says, that there is no more Roger Federer ...

Novak Djokovic's bid for his 100th ATP Tour singles title will have to wait a little longer after the Serbian star pulled out of next month's Italian Open on Tuesday. Djokovic, a six-time winner ...