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Musetti's 7-5 3-6 7-5 win means that all four players can still make the semi-finals, with the Italian facing Carlos Alcaraz, on two wins from two, and Taylor Fritz taking on De Minaur on Thursday to close out the group, with the top two making the last four.

Musetti looked down and out with De Minaur serving for the match but those few who left early to beat the traffic missed out on a stunning comeback.

The Italian took the first set after breaking serve at 5-5, and De Minaur survived three break points in the second set opener before finding his first break points of the match at 4-4 and making them count.

De Minaur had control in the final set at 2-0 up, but when it came to the crunch Musetti found energy from somewhere to pull off a great escape, as defeat would have meant elimination.

After two spectators died from cardiac arrests on Monday, play was held up again for a medical emergency in the crowd in the final set of Musetti's win. The match was suspended for several minutes before resuming. Local media reported a fan was transported to hospital in a serious but not life-threatening condition.