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.

In the ATP Finals’ Day 2, there was a shocking surprise. Carlos Alcaraz was defeated by Casper Ruud in the first match of the 'John Newcombe group', creating a situation that no one would have expected before the start of the tournament.

Wimbledon champion Carlos Alcaraz suffered a surprising opening defeat to Casper Ruud at the ATP Finals in Turin, struggling with a stomach issue that hindered his usual Grand Slam-winning form. Ruud capitalized on Alcaraz’s lackluster performance,

Casper Ruud stuns an out-of-sorts Carlos Alcaraz at the ATP Finals, before Alexander Zverev beats Andrey Rublev.

Alexander Zverev triumphed over Andrey Rublev with a score of 6-4, 6-4 in their ATP Finals opener in Turin. Zverev's victory, mirroring their 2023 enc

Top-ranked Jannik Sinner has made it two wins in two matches before his home fans at the ATP Finals by beating Taylor Fritz 6-4, 6-4 in a rematch of the U.S. Open final

Top-ranked Jannik Sinner beat Taylor Fritz 6-4, 6-4 at the ATP Finals on Tuesday in a rematch of the U.S. Open final that the Italian also won in straight sets.

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,

Norway's Casper Ruud eased to a straight-sets victory over Carlos Alcaraz on Monday as the Spanish star's bid for a maiden ATP Finals title got off to a poor start.

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.