Who will be the next ATP Tour stars?

The inevitable changing of the guard in men’s tennis is upon us – Roger Federer, Rafael Nadal and Novak Djokovic are all over 34, and won’t be able to compete at the top level for much longer. The next generation of tennis players are starting to break through, with eight of the current top 12 players in the ATP rankings are under 30, but who will fill the void the current dominant trio will leave when they retire? Find out below.