ATP Finals: Rafael Nadal beaten by Felix Auger-Aliassime in Turin

The loss of Nadal's hopes of a first title took a toll on the Spaniard.

The loss against the Canadian was followed by a loss to the Americans in Torino.

The Spaniard needs to win the year-end title to become the world's top ranked person.

He might not have enough to keep his hopes alive.

The man who has already beaten Auger-Aliassime needs to win a set against the man who is next in line to eliminate Nadal.

Carlos Alcaraz would end the year as world number one if Nadal left early.

Nadal said that he doesn't forget how to play tennis or be strong enough mentally.

I need to recover all of the positive feelings, confidence, and strong mentality that I need to be at my best.

I'm not sure if I'll reach that level again. I don't have any doubts that I will die for it.

Going back to the US Open, Nadal has lost four times.