You would think that with 20 years on the clock, 24 Grand Slam trophies sitting on the mantelpiece and more than $182 million banked in prize money, Novak Djokovic would have had enough. The endless travel and being away from his family, the strict diet, the even stricter training programme and the constant pressure of being the one man every player wants to beat – surely, he must be tired of it by now. Apparently not.
At the age of 37 – and even with a very modest run of results behind him this year – the world No.1 is still as keen and eager as ever.