Overview

• Alexander Zverev impresses with a win over Andrey Rublev, boosting his chances in the ATP Finals and climbing to No. 2 in the ATP rankings.
• Jannik Sinner continues to excel, having already won seven titles this season, including two Grand Slams, and remains a favorite for the ATP Finals title.
• Carlos Alcaraz suffers a surprising loss to Casper Ruud in his opening match, raising concerns about his fitness and ability to advance in the tournament.
• Alcaraz is experimenting with new techniques without his coach's input, but health issues, including a stomach problem and nasal congestion, are affecting his performance.
• Andy Roddick praises Zverev's consistency and strong serve, highlighting him as a potential threat to Sinner for the ATP Finals title.