Sleepless nights. Constant thoughts of what went wrong — and how it could have been prevented. Jannik Sinner opened up about his ongoing doping case after beating U.S. Open runner-up Taylor Fritz 6-4,

The American has Alexander Zverev's number in a matchup that could define their coming years, but he is yet to conquer Jannik Sinner.

World No. 1 Jannik Sinner defeated American Taylor Fritz 6-4, 6-4 to win the ATP Finals in Turin, Italy, on Sunday, claiming the trophy for the first time on home soil.

U.S. Open runner-up Taylor Fritz has reached another big final at the ATP Finals after beating Alexander Zverev 6-3, 3-6, 7-6 in Turin.

It only made sense that Jannik Sinner's breakout year ended with a celebration in Turin, Italy. The Italian superstar won his first two Grand Slams this year and completed the season by winning the ATP Finals title. He is the first Italian to win the year-end tournament.

Home favourite and world number one Jannik Sinner became the first Italian to win the ATP Finals title following a dominant 6-4 6-4 victory over American Taylor Fritz on Sunday. Sinner, who lost last year's final to Novak Djokovic,

TURIN, Italy — And so the year ends as it began, with Jannik Sinner’s arms around a big sliver trophy, making a mess of the competition and tennis history for his suddenly tennis-mad country.

Top-ranked Jannik Sinner wins the ATP Finals by beating Taylor Fritz.

World tennis number one Jannik Sinner beat American Taylor Fritz 6-4 6-4 in the final to win the ATP Finals title in Turin on Sunday.

Italian world number one Jannik Sinner beats American Taylor Fritz in straight sets to win his first ATP Finals title in Turin.

Top-ranked Jannik Sinner added another big title to his tremendous year, beating U.S. Open runner-up Taylor Fritz 6-4, 6-4 on Sunday for the ATP Finals trophy before