Djokovic-Thiem, the chronicle
First set with break and counterbreak in the space of two games, which brings the match to the natural tie-break: here to impose itself is Nole, who commits fewer errors than the rival and takes home the partial after a fight over an hour of play. Thiem does not get upset and opens the second set with a break that takes him 3-0 forward. The Austrian plays magnificent tennis and conquers the partial 6-3, mathematically eliminating Berrettini from the Finals. Djokovic looks a bit run down and gives the joke even in the opening game of the third set, with the O2 Arena that drags Dominic, but when the Serb seems at the most difficult moment, he manages to come back 'on duty'. An unexpected empty passage in the 11th game gives Thiem the break that allows him to go and serve for the match, but the little arm of the Austrian it is fatal and drags the match to the tie-break. After a battle of over two and a half hours of play it is the desire to win of a wild Thiem that makes the difference and gives him success 7-6 after almost three hours of play.
Results and rankings of the Borg group
Djokovic-Berrettini 6-2, 6-1
Thiem-Federer 7-5, 7-5
Federer-Berrettini 7-6, 6-3
Thiem-Djokovic 6-7, 6-3, 7-6
Ranking: Thiem 2-0, Federer and Djokovic 1-1, Berrettini 0-2