Novak Djokovic said: "One thing that probably allowed me to come back and save match points and win this match was the mental stability in those moments. You need to be constantly playing well throughout five hours if you want to win a match like this.
I guess there is an endurance part. But I think there is always this self-belief. You have to keep reminding yourself that you're there for a reason and that you are better than the other guy."