Jannik had some physical problems during the spring, especially in his hip, which forced him to withdraw from the Masters 1000 in Madrid and to give up the Masters 1000 in Rome. Just before the US Open,

World number one Jannik Sinner has added fitness coach Marco Panichi and physiotherapist Ulises Badio to his staff following the dismissal of two members after he escaped a doping ban despite failing two drug tests in March.

Novak Djokovic’s wife, Jelena, has weighed in on social media after seeing two of her husband's former coaches link up with would number one Jannik Sinner

Jannik Sinner, the reigning US Open champion, has enlisted the services of Marco Panichi, Novak Djokovic 's former fitness coach. This decision follows a doping controversy involving Sinner earlier this year.