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 ...

World No. 1 Jannik Sinner is facing immense backlash for rehiring Umberta Ferrara, the same fitness trainer he fired a year ...

Jannik Sinner's Wimbledon victory is shadowed by a past Clostebol controversy, raising questions about fairness and ...

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

Jannik Sinner captured his first Wimbledon title on Sunday, but a dark cloud hangs over the most significant win of his young ...

The Italian world No.1 failed two drug tests in 2024, which eventually saw him suspended at all tennis competitions from ...

Jannik Sinner has reappointed Umberto Ferrara as his fitness coach after nearly a year apart, following the player’s doping ...

Wimbledon champion Jannik Sinner has rehired former fitness coach Umberto Ferrara. Sinner had parted ways with Ferrara ...

Carlos Alcaraz has already spoken out on Jannik Sinner's controversial doping ban as the pair prepare to face each other in ...

World number one Jannik Sinner, who is about to return to action after a three-month doping ban, thought about walking away from tennis even while successfully defending his Australian Open title ...

By Issy Ronald, CNN (CNN) — For months, the tennis world has simmered with controversy in the wake of two doping cases involving top-ranking ...