Who among these players did not work with Nick Bollettieri?
Novak Djokovic
Tommy Haas
Nicole Vaidišová
Sabine Lisicki
Answer
Novak Djokovic did not work with Nick Bollettieri, a former tennis player and coach who has been credited with developing many of the world's top players. Djokovic has instead been coached by his father, Srđan, and Marian Vajda.