Australian Nick Kyrgios has once again spoken out against World No. 1 Jannik Sinner due to the reopening of his doping case.

Kyrgios has been very vocal about Sinner’s doping scandal. In August, the International Tennis Integrity Agency announced that the world No. 1 was ruled to have “bore no fault or negligence” for two anti-doping violations in March.

Jannik Sinner continues to win, but little is being said about his results in recent weeks. Amid the doping case and various controversies, Nick Kyrgios has now returned to attack him. Sinner,

Jannik Sinner is through to the last 16 at the Shanghai Masters and has explained his decision to hire two of Novak Djokovic's old team members

Jannik Sinner has opened up about recently hiring fitness coach Marco Panichi and physiotherapist Ulises Badio, who are both former members of Novak Djokovic’s team. The world No 1 revealed he is already “very comfortable” with Panichi and Badio and explained that the fact the duo worked together previously is “a big help.

Jannik Sinner continues to win, but his results have been little talked about in recent weeks. Amidst the doping case and various controversies, Nick Kyrgios has now returned to attack him.