Alexander Zverev surged into the semi-finals of the ATP Finals after eliminating French Open and Wimbledon champion Carlos Alcaraz with a 7-6(5) 6-4 defeat, while Casper Ruud also advanced with a 6-4 5-7 6-2 win over Andrey Rublev on Friday.

Alcaraz's recent struggles on fast hard courts are a welcome reminder that he has plenty of runway to improve.

Carlos Alcaraz was the big name missing when the last two semifinal spots were filled at the ATP Finals on Friday. Alcaraz's 7-6 (5), 6-4 loss to Alexander Zverev meant the French Open and Wimbledon champion — who has been sick this week — was eliminated from the elite,