Before the Grand Slam millions: What Jannik Sinner’s life looked like before trophies, endorsements and becoming one of tennis’s biggest names

Jannik Sinner’s current standing atop men’s tennis seems light years away from his teen years. The Italian would go on to become a five-time Grand Slam champion, but his sporting upbringing was originally in alpine skiing rather than tennis. He began playing tennis at seven, but skiing was the main competitive activity of his early years.But the biggest change came when Sinner was 13 and a half and chose tennis, leaving his family home to train at the Piatti Tennis Center in Bordighera. It’s been a big personal adjustment, Sinner said. It’s a new training demand and time away from his parents.What Jannik Sinner’s life looked like before Grand SlamSinner was born on 16 August 2001 in San Candido, Italy and grew up in Sexten, South Tyrol. His early sporting identity was rooted in the mountains. He was a champion skier in Italy from the ages of 8 to 12 before turning to tennis, according to the ATP Tour.Tennis arrived at his life at seven years old, pushed by his father, but at that time it was still second place, behind skiing. Before committing to tennis as his main sporting commitment, the young Sinner got some competitive experience on the slopes. That’s where he started his early athletic development.Early milestoneDetailBirthAugust 16, 2001BirthplaceSan Candido, ItalyChildhood baseSexten, ItalyStarted tennisAge 7Skiing achievementItalian champion from ages 8 to 12Tennis became priorityAge 13Sinner’s decision to leave skiing behind was more than just a sports switch. He left home at around 13 and a half to train with Riccardo Piatti and Massimo Sartori in Bordighera. The ATP Tour highlights that Sinner saw the move as a major step in his development, both on and off the court.The transition also meant changing to a completely different daily routine. Sinner has said that he had not spent much time in a gym before, nor trained at the intensity that followed his move. In 2026, he said, almost everything changed from the age of 13 and a half.His parents were also instrumental in enabling the teenager to take that opportunity, despite the difficulty of having him leave home so young. Sinner, who later spoke about the sacrifice and lost family time during those formative years.Jannik Sinner’s family shaped his grounded upbringingBefore Jannik Sinner’s name was associated with Grand Slam trophies, global sponsorships and the glare of professional tennis, he grew up in South Tyrol on family, sport and a relatively simple routine. His parents, Johann and Siglinde Sinner, worked in the hospitality business, his father as a chef and his mother as a waitress. Sinner’s busy schedule was an early lesson in the discipline needed to pursue a goal.Born and raised in Sexten, a small mountain town near the Austrian border, Sinner grew up surrounded by the Dolomites, developing a strong affinity for outdoor sport. Skiing was his first big competitive sport, and he had national-level success as a junior before deciding tennis was the future he wanted. The choice to focus exclusively on tennis came at a personal price. As a teenager, Sinner left home and moved to Bordighera to train with Riccardo Piatti. He was moving into a new environment and a much tougher working routine when a lot of younger players were still getting used to familiar surroundings.Sinner has since spoken about how much he learned from his parents and the sacrifices they made in his early development. With their support, he was able to take tennis seriously, without losing the values he had grown up with at home.That background also helps explain why Sinner's rise has been gradual, not a meteoric ascent. He trained, traveled and competed at lower professional levels through his teenage years before his breakthrough in 2019. So the road from being a young skier in the Italian Alps to becoming an established tennis pro involved some years of preparation before the big titles and commercial opportunities arrived.Jannik Sinner built his career from scratchSinner wasn’t a star when he went pro on the tennis circuit. He has a history of steady ranking improvement. He finished 2018 at No. 763 before making a significant jump in 2019, moving up the rankings to finish the year at No. 78.That breakthrough in 2019 featured his first ATP Challenger title in Bergamo and a run to the Next Gen ATP Finals title. His appearance in Vienna later that year helped him break into the top 100, and that’s how quickly his development accelerated once the foundation was laid.Career stageSinner’s position or milestone2018Year-end ATP ranking No. 7632019First Challenger titleOctober 2019Broke into Top 100November 2019Career-high No. 782021Entered ATP Top 10June 2024Became first Italian ATP No. 1The scale of Sinner’s transformation is all the more pronounced when his position before the major trophies arrived is set against it. He was still an emerging teen discovering the rigors of professional tennis back in 2019. He became the first Italian man to reach the No. 1 ranking by the ATP in 2024, and by July 2026 had won five Grand Slam titles.So his early story is less about fame and commercial success and more about the decisions that led to them. A childhood shaped by skiing, a teenage move away from home and a gradual rise through professional tennis. Those years set the stage for the career that would eventually make Sinner one of the biggest names in the sport.Stay updated with the latest Asian Games 2026 news, check the Asian Games medal tally and complete Asian Games schedule.Get the latest Sports News and Live updates. Download the TOI app.