Matteo Berrettini earned his 1st ATP Finals win after beating Dominic Thiem in straight sets

Matteo Berrettini became the first Italian to win a match in ATP Finals history as he signed off with a 7-6(3) 6-3 defeat of off-colour Dominic Thiem at the O2 Arena on Thursday.

The afternoon tussle was a little flat as Thiem had already sealed a place in the semi-finals after group wins against Roger Federer and Novak Djokovic, while Berrettini could not progress.

But the powerful 23-year-old Berrettini, making his debut at the tournament, produced some eye-catching tennis to make sure he heads home with a morale-boosting win.