John Millman believes Kyrgios, Hurkacz and Fritz will be very tough to beat at the Australian Open due to the balls being used there.
The native Australian had a chance to practice with new balls that will be used at the grand slam noting how they are fairly light and quick. Conditions like that will certainly benefit the big servers among the player most like Fritz, Kyrgios, Hurkacz, Zverev and others.
Pretty much most big names have a good serve albeit there are those that are even better than most. He wrote it on Twitter:
"Having hit with the AO 2023 Dunlop balls the last week my general observation is they are light and quick, especially when new. Not the easiest to control initially even in the humid conditions where I am in Brisbane. NK, Hurkacz, Fritz all very dangerous this AO."