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Jannik Sinner has become the first player to qualify for the semifinals of this year's ATP Finals in Turin after a 6-4, 6-3 victory over Alexander Zverev in his second round-robin match of the week on Wednesday.

With that win, and with Felix Auger-Aliassime's win over Ben Shelton earlier in the day, the Bjorn Borg round-robin group records are now Sinner 2-0, Zverev 1-1, Auger-Aliassime 1-1 and Shelton 0-2, with Sinner advancing to the semifinals as group winner and Shelton eliminated.

The winner of Zverev against Auger-Aliassime on Friday will finish second in the group, and thus advance to the semifinals too.

Sinner's latest win also means he keeps his hopes of finishing the year at No. 1 alive—he'll be year-end No. 1 if he wins the title undefeated and if Carlos Alcaraz doesn't win another match in Turin this week.

Alcaraz plays his third round-robin match on Thursday against Lorenzo Musetti. If the Spaniard wins that, he clinches year-end No. 1.

More to come...

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