Jannik Sinner won his second consecutive Wimbledon title last weekend, defeating Alexander Zverev in the final.
The world number one is now a five-time major champion, moving to within two of his rival Carlos Alcaraz.
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Sinner was excellent throughout Wimbledon and looked particularly impressive on serve.
WTA star Jessica Pegula has now shared her thoughts on Sinner’s serve.
Jessica Pegula says Jannik Sinner’s serve is the most improved shot in tennis
During the latest episode of ‘The Player’s Box Podcast‘, Pegula said the following.
“His serve is so good,” she said.
“We should have an award for most improved shot on Tour, and it’s [Jannik] Sinner’s serve. His serve is a joke.
“His wide serve on the AD side is insane.
“Every time I watch him, I’m like, I know that is his favourite serve, and you always think that there’s no way he is going for it again, but he hits an ace every time.
“I don’t understand.
“I’m like, how did your serve get so much better?”
Sinner’s serve has improved every year he’s been on tour, as evidenced by his ‘Serve Rating’.
Jannik Sinner’s ‘Serve Rating’ progression
- 2025 – 297.4 (1st on ATP Tour)
- 2024 – 295.6 (4th on ATP Tour)
- 2023 – 282.9 (12th on ATP Tour)
- 2022 – 272.4 (33rd on ATP Tour)
- 2021 – 268.4 (32nd on ATP Tour)
- 2020 – 264.0 (22nd on ATP Tour)
- 2019 – 261.0 (65th on ATP Tour)
The Italian had a 261.0 rating in 2019, the 65th-best on tour, and last year, he was recognised as the best server in men’s tennis with a 297.4 rating.
And Sinner continues to make progress, surpassing the 300-mark (302.4) with his 52-week rating.
Former Australian Open champion Madison Keys was also keen to share her thoughts.
“I think I heard Darren [Cahill] talking about it when he first started with Jannik, and one of the big things was we need to improve your serve,” she said.
“Basically, they picked someone to watch and then just tried to copy their serve. He picked John Isner and was like, ‘Got it.’
“From there, it’s crazy that you are at the top of the game, or are one of the top three, and you are willing to change things when you are holding 87 times against people.
ATP Rankings
| Rank | Name | Country | Points |
| 1 | Jannik Sinner | Italy | 13,450 |
| 2 | Alexander Zverev | Germany | 8,480 |
| 3 | Carlos Alcaraz | Spain | 8,160 |
| 4 | Felix Auger-Aliassime | Canada | 4,740 |
| 5 | Alex de Minaur | Australia | 4,110 |
“Someone will come and say ‘we should make a tweak’ and he’s like okay, no problem.”
So with the best serve and arguably the best return on the ATP Tour, what else is there for Sinner to improve?
What else can Jannik Sinner improve after winning Wimbledon?
During their post-match press conference, Simone Vagnozzi and Darren Cahill highlighted areas where Sinner can still improve.
“For sure, there is room where he can still improve. Today he didn’t make any serve and volley, I think, said Vagnozzi.
“There was a 3-4 rally where he couldn’t come to the net. He didn’t close the net, and then he lost the point. There is always room where we can improve.
“I think our project is always to be more aggressive, so try to go more to the net, try to make some more drop shots sometimes.”
“Less dropshots when you’re serving for the match!” added Cahill.
The Aussie continued, explaining what impressed him about Sinner’s performance in the Wimbledon final.
“At 24 years of age, to have a long, successful career, you need to keep adding things to his game,” said Cahill.
“The stuff that Simone [Vagnozzi] and he are doing on the court is remarkable. They work on the little things every single day. Then you need the matches to try to put that into play.
“We saw a lot of the stuff he doesn’t normally like doing, even in the final today. Sliced backhands, a couple of lobs, a couple of dropshots. Really stepping up when he needed to in the big moments. Instead of being defensive and waiting for the opponent to come to him, he took it away from his opponent.
“They’re all really great things for us to look at from a coaching perspective.”
Vagnozzi, Cahill, and Sinner will continue to work on his game ahead of his return to action at the Canadian Open later this month.
