Novak Djokovic stands on the brink of a record-equalling 22nd Grand Slam title and it is his determination to be the greatest ever which drives him on through the controversies.
The 35-year-old Serb is already one major clear of Roger Federer and victory over Stefanos Tsitsipas in the Australian Open final on Sunday will draw him level with Rafael Nadal.
For Djokovic, it matters to be the best and he has a strong sense of his historical place in tennis.
But he also keeps ploughing on through the highs and lows because it is “a great school of life
