He’s got a stranglehold on the No. 1 ranking. He’s unbeaten this week and hasn’t dropped a set. And his home Italian fans can’t get enough of him. Things couldn’t get much better for Jannik Sinner at the ATP Finals so far — despite an ongoing doping case that likely won't be decided until early next year.

Taylor Fritz, the U.S. Open finalist who lost to Sinner in New York, was also drawn in the Italian’s group alongside Australian Alex De Minaur, making his ATP Tour Finals debut; Casper Ruud and Andrey Rublev, who qualified as world No. 9 after Novak Djokovic withdrew, rounded out the second group.

On September 30, 2024, Medvedev won his most recent match, 6-2, 6-4, over Flavio Cobolli in the quarterfinals of the China Open. During the past two years, Sinner is 6-3 against Medvedev in their head-to-head matchups. Their last one happened at the US Open on September 4, 2024 and was won by Sinner 6-2, 1-6, 6-1, 6-4.