On November 10, 2025, in his ATP Finals title defense, Jannik Sinner did not hold back and defeated Felix Auger-Aliassime in straight sets by a score of 7-5, 6-1. Sinner was playing in Turin, Italy, where he was able to take advantage of support from the local crowd. With this victory, Sinner took one more step towards ruling the tennis world and chasing the year-end No. 1 ranking.
Competitive Start
Initially, Felix Auger-Aliassime was able to keep pace with Jannik Sinner by replicating almost every shot made by the latter in the first and tightly contested set. In addition to that, his performance got worse and worse due to a left calf injury that was the cause of the two medical timeouts he requested during the match. As a result of these physical challenges, Sinner was able to take the advantage and achieve an important break to win the first set 7-5.
Dominant Finish
After the injury to Auger-Aliassime had a greater impact on his play, Sinner increased the level of his play and encountered little opposition in the second set. He managed to move well ahead of his opponent and ended the match with a 6-1 second set that spoke loud and clear of his excellent form and concentration.
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Sinner’s 2025 Season and ATP Finals Context
The two players met four times in 2025: in the US Open semifinals, the Paris Masters finals, and two other tournaments. Jannik Sinner won all four matches, thus extending their head-to-head to four wins with no losses for the Italian. One of those matches is exactly the one from which the ATP Finals season draws its origin and that is quite an impressive feat for Sinner who is considered the defending champion the ATP Finals, having lifted the trophy last year without dropping a set.
Conclusion
Felix Auger-Aliassime fell short of his challenge to Jannik Sinner as the latter proved he was up for the task at the ATP Finals to defend his crown. Therefore, with the crowd on his side and his dominant play, Sinner is set perfectly to vie for both the prestigious trophy and the year-end No. 1 ranking. The combination of his talent, determination, and good run of form will most certainly be the crucial factors in the later stages of the tournament.
