Wimbledon champion Jannik Sinner has reappointed former fitness coach Umberto Ferrara, who the men's world No.1 dropped after he tested positive for a banned substance

Nick Kyrgios has led a wave of outrage as Jannik Sinner announced controversial high-performance coach Umberto Ferrara has returned to his team.

JANNIK SINNER has rehired the fitness coach that played a key role in his failed drugs tests last year. Prior to winning Wimbledon this summer, Sinner, 23, served a three-month ban after twice

Jannik Sinner, for sure, will be bombarded with questions related to his coaching situation when he returns to tennis at The post Nick Kyrgios Blasts Jannik Sinner After He Shocks Tennis World by Re-hiring Coach Linked to Doping Scandal appeared first on FirstSportz.

Sinner has several endorsement deals with major brands. In 2024, those deals netted him $15 million and made up the majority of his net worth. His sponsors include Nike, Head, Rolex, Panini, Gucci, Lavazza, Intesa Sanpaolo Assicura and FastWeb S.p.A.

Carlos Alcaraz and Jannik Sinner have won the last seven Grand Slam titles between them and have formed a thrilling rivalry in men's tennis in recent months

Nearly two months after the duel, Carlos Alcaraz continues to reflect on his unforgettable Roland Garros final against Jannik Sinner. The two great rivals met in a Major final for the first time and pushed the boundaries.