TURIN, Italy – 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. It was Ruud’s first win over Alcaraz in five career meetings and the result could make it difficult for Alcaraz to advance from the round-robin stage at the season-ending event for the year’s top eight players. Alexander Zverev later plays Andrei Rublev. The top two finishers from each group will advance to the semi-finals. Top-ranked Jannik Sinner and US Open finalist Taylor Fritz won on Sunday.