Alexander Zverev insisted improvements needed to be made despite kickstarting his ATP Finals campaign with a straight-set triumph over Andrey Rublev on Monday. (More Tennis News)
Zverev, who is going in search of a third crown at the year-end tournament, emerged a 6-4 6-4 victor in 72 minutes in Turin to claim a Tour-leading 67th win of 2024.
Rublev, however, got off to a blistering start to the encounter, winning each of his 13 points on serve, only for a lapse in the seventh game that allowed Zverev to take the opening set.
Zverev continued to trade blows with his opponent, but he claimed the decisive break point in the ninth game to maintain his dominant record in opening round-robin matches at the event (6-1).
"I'm looking forward to the next few matches, and hopefully I can improve on a few more things because I don't think this match was perfect to be honest," Zverev said.
"I still think there's a few more things that can be better. I missed a few balls from the baseline and I feel I wasn't as sharp movement-wise as I would like to be."
Zverev joined Casper Ruud at the top of the John Newcombe Group after he had beaten Carlos Alcaraz earlier on Monday, with the Norwegian up next for the world number two.
Data Debrief: Alexander the Great
After winning the ATP Finals in 2018 and 2021, Zverev's performance against the big-hitting Rublev was a sign of his intentions to complete a hat-trick of victories at the year-end tournament.
The German struck 22 winners compared to his opponents' 10, along with converting both break points he was presented with.
Excluding the Laver Cup, Zverev also claimed the 50th ATP top 10 win of his career, becoming the first player born since 1990 to achieve the feat.
