Jannik Sinner

Jannik Sinner (born 16 August 2001) is an Italian professional tennis player. He is ranked as the world No. 1 in singles by the Association of Tennis Professionals (ATP), the first Italian player to reach the top ranking. Sinner has won 18 singles titles on the ATP Tour, including two majors at the 2024 Australian Open and the 2024 US Open, as well as four Masters 1000 titles and the 2024 ATP Finals. He led Italy to the 2023 Davis Cup crown, its first since 1976.

After being a competitive skier between the ages of 7–12, Sinner began to focus exclusively on tennis at 13, and moved from South Tyrol to Bordighera on the Italian Riviera to train with veteran coach Riccardo Piatti. Despite limited success as a junior, Sinner began playing in professional men's events aged 16, and became one of the few players to win multiple ATP Challenger Tour titles at age 17. In 2019, he broke into the top 100, winning the Next Generation ATP Finals and the ATP Newcomer of the Year award.

In 2021, he became the youngest ATP 500 champion at the 2021 Citi Open, and the first player born in the 2000s to enter the top 10 in rankings. Sinner won his first Masters 1000 title at the 2023 Canadian Open and finished the season by reaching the final of the ATP Finals and contributed to Italy lifting the Davis Cup. At the 2024 Australian Open, Sinner defeated world No. 1 Novak Djokovic in the semifinals to reach his first major final. He then defeated Daniil Medvedev in a five-set final, coming back from two sets down to win his first Major title. He followed by winning the US Open and ATP Finals and finished as the year-end No. 1.