(Reuters) - World number three Carlos Alcaraz is unlikely to be at his best for Wednesday's ATP Finals match against Andrey Rublev as the four-times Grand Slam champion continues to struggle with illness, the Spaniard's coach Juan Carlos Ferrero said.

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 F

Carlos Alcaraz had his drop shot working and overcame physical issues to claim a 6-3, 7-6 victory over Andrey Rublev at the ATP Finals

Carlos Alcaraz overcame physical issues to beat Andrey Rublev and stay in contention for a spot in the semifinals at the ATP Finals.

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

Carlos Alcaraz became the second youngest player to accomplish an impressive feat with his victory against Andrey Rublev at the 2024 ATP Finals in Turin. The four-time Grand Slam champion downed the 27-year-old Russian 6-3,

Carlos Alcaraz struggled with a stomach issue and looked far from the player who won two Grand Slams this year while losing to Casper Ruud 6-1, 7-5 at the ATP Finals on Monday.

Carlos Alcaraz had his drop shot clicking and it helped him overcome physical issues to claim a 6-3, 7-6 (8) victory over Andrey Rublev at the ATP Finals on Wednesday. The win put Alcaraz back into contention for a spot in the semifinals of the year-ending tournament for the top eight players,