Jannik Sinner's 'Crazy' Serve Stuns Pegula, Keys After Wimbledon 2026 Win

Jannik Sinner's dominant serve left tennis stars Jessica Pegula and Madison Keys stunned after his 2026 Wimbledon triumph. The Italian defended his title with a 6-7(7), 7-6(2), 6-3, 6-4 win over Alexander Zverev, saving all break points faced.

What impressed Pegula and Keys?

Pegula called Sinner's serve 'a joke' on *The Player's Box* podcast, praising his wide serve on the ad side. 'He just hits an ace every time. I don't understand how his serve got so much better,' she said.

Keys revealed Sinner copied John Isner's serve motion on coach Darren Cahill's advice. 'It's crazy he improved something already so effective,' she added.

How did Sinner transform his serve?

Sinner admitted focusing on serve precision after Wimbledon 2025. 'You have to be very careful not to get broken,' he said post-match. His 2026 stats showed zero breaks conceded against Djokovic in semis and Zverev in finals.

Isner joked about the combo: 'Serving like me with an actual baseline game is a decent combo.'

Why does this matter for Sinner's career?

The serve upgrade solidifies Sinner's world No.1 status. His 2026 Wimbledon run featured 87 consecutive service holds. 'To keep improving at the top shows his dedication,' Keys noted.

Sinner's next challenge: defending his US Open title in September 2026.