Jannik Sinner reappoints fitness coach he dropped after doping scandal
Jannik Sinner has reappointed former fitness coach Umberto Ferrara as part of preparations for the Cincinnati Open and US Open, ensuring continuity in his performance.
Why Tennis Pro Jannik Sinner Chose Home Over More Training
Sinner emphasizes the importance of recovery through normal social activities, demonstrating how trust and playful interactions can significantly aid in physiological regulation.