Nick Kyrgios’s commitment levels have always tended to wax and wane in accordance with some mysterious music of the spheres. But he has never reached quite such a nadir of indifference as he did in Shanghai today, while blatantly throwing a match against Mischa Zverev.

The most damning moment was the one where Kyrgios patted a serve over the net in the manner of a 60-year-old clubbie and then walked to his chair before Zverev had even struck the reply.

But there were plenty more lowlights to choose from, as Kyrgios also threw in daft “tweeners” for effect (ironically, the ATP tour picked one of these as its “Hot Shot of the Day”) and told umpire Ali Nili “Can you call time so I can finish this match and go home?”