Kyrgios, who lost in the third round at the US Open, increased the likelihood of receiving a rare suspension by calling the Association of Tennis Professional a “corrupt” organisation.
“Nick is Nick, unfortunately,” Laver said of the 24-year old from Canberra.
“He could have been, or still could become, a world champion because of his serving ability, his game.
“But his brain gets in the way. He doesn’t want to adhere to the conditions or the umpire.”
The ATP subsequently said it was “looking further into what happened during and immediately after the match to see if additional action is warranted under the player major offence section of the code and that could result in an additional fine and/or suspension”.
Asked at the US Open about the prospect of being suspended, Kyrgios said: “The ATP is pretty corrupt anyway. I’m not fussed about it at all.”
Kyrgios later said he had not used the “correct choice of words” and that he did not believe the ATP was corrupt.
“To be clear I know I’m not perfect and do not pretend to be and I acknowledge I’ve deserved fines and sanctioning at times but I expect consistency and fairness,” he said.
“To date that’s not happened.”
Laver said he was disappointed by Australian Ash Barty’s surprise fourth-round US Open loss to Chinese player Wang Qiang, but that she will look back on this year, in which she won the French Open and reached world number one, as a triumph.
Matthew Knott a reporter for The Sydney Morning Herald and The Age based in the United States.