Djokovic - a game theory expert?

Professional tennis is probably one of the toughest sports. As the game has shifted into the realm of high speeds and relentless rallies, equipment has gone through immense developments and players are reaching the peaks of their physical form, the hidden key to winning may now lie with game theory. Economic research over the last few years suggests that the likes of Djokovic, Nadal and Federer not only spend hours mastering their serve, forehand and backhand, but also seem to spend a significant amount of time honing their game theory skills.