Once again the tennis circus is back in town, as the season-ending ATP Finals take place at London’s O2 Arena. With the world’s top eight men’s singles players and doubles teams in action there should be plenty of scintillating tennis on view. Sadly, Andy Murray hasn’t yet regained the required ranking having come back from hip surgery, but “the big three” are all here, with Federer seeking a seventh win at the event, whilst Nadal and Djokovic are battling it out to end the year as world number one. Meanwhile, some of the young guns on the circuit, namely Medvedev, Zverev, Berrettini, Tsitsipas and Thiem, are not there just to make up the numbers and will be very much hoping for some upsets. There’s plenty to play for and it’s definitely one to watch.