Sinner tested positive twice for an anabolic steroid during the 2024 Indian Wells Tournament. He tested positive for a substance called Clostebol, which is notably banned in tennis, and he was first popped for the steroid during Indian Wells, and then again eight days later in an out-of-competition sample.

Jannik Sinner has made a key decision regarding his professional career as he prepares for major upcoming tournaments, including the US Open.

Their victories at the All England Club have reopened debate in tennis and the wider sporting world about their cases. Is it valid?

Jannik Sinner won his fourth career grand slam at Wimbledon in 2025. But it has been a turbulent period for the Italian tennis star