Jannik Sinner has become one of the best tennis players in the world following his dominance since 2024.
Sinner has spent over 60 weeks as World No. 1 following four Grand Slam titles since the beginning of 2024.
The Italian continues to break records in tennis, with Sinner aiming for back-to-back US Open titles for the first time since 2014.
Here is everything you need to know about the World No. 1, Sinner.
How old is Jannik Sinner?
Sinner was born on 16 August 2001 in Innichen, in the Northern Italian province of South Tyrol. As of August 2025, the tennis star is 24 years old.
Jannik Sinner’s family
Sinner’s mother and father are Hanspeter and Siglinde Sinner. His father worked as a chef and his mother as a waitress at a ski lodge.
The star has an adopted brother, Mark, who was born in Russia in 1998.
X/Twitter and Instagram accounts
Sinner can be found on X at the handle, @janniksin. He currently has 363,000 followers, whom he mostly updates on his career.
The Italian has the same handle on Instagram, where he has 4.7 million followers and has posted 690 times.
Jannik Sinner’s coach
Sinner has two main coaches across the ATP Tour in Simone Vagnozzi and Darren Cahill. Vagnozzi was a former professional tennis star, although he never got past the third qualifying for a Grand Slam.
Cahill, meanwhile, reached the semi-finals of the US Open in 1988, and also forged a legendary tennis coaching career.
The Australian has previously coached the likes of Lleyton Hewitt, Andre Agassi, Amanda Anisimova, and Simona Halep.
Both Cahill and Vagnozzi were awarded Coach of the Year at the ATP Awards in 2023 for their work with Sinner.
Jannik Sinner’s Grand Slam wins
To date, Sinner has four Grand Slam title wins to his name since his inaugural win at the Australian Open in 2024.
| Year | Grand Slam |
| 2024 | Australian Open |
| 2024 | US Open |
| 2025 | Australian Open |
| 2025 | Wimbledon |
The only Grand Slam Sinner is yet to win is Roland Garros. The closest he got was the final in 2025, where he lost to Carlos Alcaraz in five sets.
Jannik Sinner’s rivalry with Carlos Alcaraz
Sinner and Alcaraz have propped up the ATP Tour following the retirement of Roger Federer, Rafael Nadal, and Andy Murray.
The two men are currently ranked World No. 1 and World No. 2, with Sinner holding the top spot for the past year.
Sinner and Alcaraz have met in several high-profile finals, but Sinner currently holds a losing record in their head-to-head.
The Italian has won five of his 14 meetings against Alcaraz, most recently defeating the Spaniard in the final of Wimbledon.
Jannik Sinner’s prize money
According to ATP Tour, Sinner has won $46,279,987 since turning professional in 2018. That includes 20 career titles, including his four Grand Slam events.
Sinner has notched up $9,035,053 in prize money in 2025, with 31 wins and four losses in the calendar year.