The banners and signs — one of which declared, “Sinner for president.” Late in the second set of his victory over Taylor Fritz at the ATP Finals on Tuesday, Jannik Sinner used all the adulation in his home country to his advantage.

Carlos Alcaraz looked little like the player who won two Grand Slams this year in a 6-1, 7-5 loss to Casper Ruud at the ATP Finals

Carlos Alcaraz struggled with a stomach issue and looked far from the player who won two Grand Slams this year in losing to Casper Ruud 6-1, 7-5 at the ATP Finals on Monday. It marked Ruud’s first victory over Alcaraz in five career meetings,

The ATP Finals is only two days in, but there have already been some significant results. Ahead of round two of group stage action, we look at how the rankings shake up after Sunday and Monday’s results.

Carlos Alcaraz fell to a shock straight-set loss to Casper Ruud in his first match at the 2024 ATP Finals in Turin.