Jannik Sinner - 'In tennis, mental energy is everything' - Players' Voice
At just 20 years old, Jannik Sinner has already acquired an impressive bank of achievements. Since starting out on the ATP Tour in 2019, he’s gone on to win five titles, break into the top 10 and reach two Grand Slam quarter-finals. — — - Ad/> When I’m asked, 'Where do you want to be at the end of the year?', I always have to smile.


