Nick Kyrgios has a short response for John McEnroe, who recently discussed the intriguing possibility of a part-time coaching role with him.
McEnroe has been a fierce critic of the mercurial Kyrgios at times, questioning his mental toughness, but he has also been a big admirer of his talent.
Commentating at the French Open, McEnroe said that, if he were to take any part-time coaching job: 'The guy that would make the most sense on paper would be Nick Kyrgios because we are two head cases.'
He did add: 'But mentally we are a bit wacky.'
Asked about that prospect ahead of this week's Queen's Club tournament in London, Kyrgios was less than impressed.
'He's dreaming,' Kyrgios snapped.
At No.20 in the world, Kyrgios has been usurped by fellow young guns Alex Zverev and Dominic Thiem in the race for a spot the world's top 10.