The world number one explains that he is going through "a very difficult time" because of his positive test for the steroid clostebol. World number one and Italian tennis player Jannik Sinner has said that he was in "a very difficult moment" having sleepless nights over his doping case.

Novak Djokovic says the Jannik Sinner doping scandal ‘is not helping our sport at all’ and shows that tennis ‘has a system that is not working well’. Djokovic spoke to reporters at the Shanghai Masters this week and seemed angry when talking about the controversy around Sinner, which is refusing to go away.

Novak Djokovic didn't hold back when expressing his thoughts on the ongoing doping case involving world No. 1 Jannik Sinner.

Novak Djokovic says the ongoing doping case involving world No. 1 Jannik Sinner is “not helping tennis at all."

By traveling to Shanghai on the same flight, Carlos Alcaraz and Jannik Sinner compete with a viral Rafael Nadal and Novak Djokovic photo.

Novak missed a chance to clinch it last year in Malaga, squandering three match points against Jannik Sinner in the semi-final. Serbia led against Italy following Miomir Kecmanovic's triumph over Lorenzo Musetti. The 24-time Major winner faced an in-form rival in the second tie, battling against Sinner for the third time within 11 days.

Novak Djokovic has spoken again about the doping case involving Jannik Sinner, and he did so from Shanghai, where the ATP 1000 tournament has begun, in which the Italian will also compete.

Carlos Alcaraz overlooked Novak Djokovic by describing Jannik Sinner as the best player on the planet after beating him in the China Open final. Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you.

What WADA appealing the ITIA decision means for the world No. 1. Plus, Jon Wertheim answers your questions about tennis fandom and social media discourse.