Kyrgios lost 6-3 1-6 6-4 6-1 before an extraordinary post-match press conference where he detailed his lack of devotion to the game.

Looking lost, the 22-year-old said he did not know if he would continue working with his coach Frenchman Sebastien Grosjean beyond the Open.

“I don’t know, honestly. I’m not good enough for him,” Kyrgios said. “He’s very dedicated. He’s an unbelievable coach. He probably deserves a player that is probably more dedicated to the game than I am. He deserves a better athlete than me.

“I’m not dedicated to the game at all.

“He’s helped me a lot, especially with the training, in training sessions, but there are players out there that are more dedicated, that want to get better, that strive to get better every day, (do the) the one-percenters. I’m not that guy.”

Kyrgios has been hampered by a hip injury for the past 12 months after retiring during a third round match at last year’s US Open.  

The issue kept him out of Wimbledon.

He said a shoulder injury flared up in the third set.

“I have had a diabolical year at these slams. It doesn’t surprise me,” he said. “It’s just the story of my career, really. I will have good weeks; I’ll have bad weeks. It’s just a rollercoaster.” The world No. 17 said.

“I don’t know. I don’t know. I keep letting people down.”