Andy Roddick thinks Novak Djokovic made the right thing by taking a Geneva wildcard and the American tennis legend warns the competition not to sleep on the Serb because he could easily turn around the situation any moment.

Jim Courier suggests Novak Djokovic may have been looking for "a spark" ahead of the French Open and Wimbledon and figured out that ditching Andy Murray could help him in his goal. On Tuesday morning European time,

Novak Djokovic is splitting with coach Andy Murray, just two weeks ahead of the French Open. The decision comes after Djokovic lost his opening match in his last two tournaments, both on clay.