With Novak Djokovic steamrolling over the debutant Matteo Berrettini, later, Roger Federer and Dominic Thiem electrified the O2 Arena on a Sunday evening.
The best eight players gathered on Friday for the media day ahead of ATP Finals, where Roger Federer and Novak Djokovic also had a common press conference.
Novak Djokovic talked about the balance between tennis and family. He feels that concluding the year-end as a World Number one is reputable achievement.