Nick Kyrgios may not be playing the best tennis of his life, but that hasn’t deterred the controversial Australian from bragging about his Wimbledon chances.

Kyrgios skipped the recently-concluded French Open after claiming the tournament “sucks” when compared to Wimbledon. Going a step further, he has now revealed he considers himself one of the best players ever on grass… on his day though.

“I feel like I’m one of the best grass-courters in the world on my day so I know that I can back myself under pressure on this surface,” the 24-year-old, who lost to Kei Nishikori in the third round last year, was quoted as saying by Daily Mail.

Then why is he yet to go past the quarter-finals at the All England Club? “Holding it together for two weeks mentally for me is tough,” he added.

“Wimbledon is the best tournament in the world. I feel like if you win Wimbledon, that’s the ultimate Slam.

“I want to be happy. I don’t know how many more Wimbledons I’ll play, I can’t take these for granted.”

Kyrgios, however, failed to back his words as he stumbled to a 3-6 4-6 defeat against Matteo Berrettini of Italy in the first round of the Mercedes Cup in Stuttgart.

He is scheduled to continue his Wimbledon preparations at the Fever-Tree Championships in London that will commence on June 17.

Wimbledon will get under way on July 1.