"I’m just trying to listen in to the chair umpire and the conversation. So Jack wants to wait until the changeover to see the doctor by the sounds of it," she said. "But he’s just cleaned his own sick with the towel that’s gone back in the towel box so in terms of hygiene, we could be doing better down here."

There were even more bizarre scenes as, in the next game, Sinner fell at the baseline and put his weight on his wrist. He grabbed it in pain. And when the changeover finally came, the physio was out for the top seed while the doctor attended to Draper.

The world No. 25 continued to towel down the baseline and the umpire stepped in, calling for a proper clean-up on the court. After a gruelling 87-minute set, Sinner took it in a tiebreak and extended his lead to 7-5 7-6(3).

Draper left the court for a comfort break while the physio returned to massage Sinner's thighs. And it all got too much for the Brit in the third - Sinner dropped just two games to complete a straight-set victory.