Reilly Opelka blasted his way into the third round at Wimbledon on Wednesday as the giant 21-year-old American's serve eventually proved too hot to handle for triple grand slam champion Stan Wawrinka in a high-octane five set duel.
Opelka came through 7-5 3-6 4-6 6-4 8-6 against the 22nd seeded Swiss for the biggest win of his career and there will be plenty of bigger names in the draw now scrabbling anxiously for a tape of this match.
At 6ft 11in (2.10 metres) the former Wimbledon junior champion is the joint-tallest-ever ATP-ranked player (with Ivo Karlovic) and, unsurprisingly, his biggest weapon is his serve. It reached 142mph (228kph) on Wednesday - the fastest of the Championship so far - and, combined with some surprisingly deft court movement, is the perfect Wimbledon weapon.
Wawrinka, who has never gone beyond the quarter-finals at Wimbledon despite winning all three of the other slams and previously reaching number three in the world rankings, could not deal with it at all in the first set.
The 34-year-old eventually used all his experience to work things out and start getting it back and then treating the crowd to some of his sublime backhand winners en route to taking the second and third.
But, just as it seemed as if he would go through smoothly, Opelka found another gear to snatch the fourth. From then on Wawrinka was having to work harder and harder to hold, while rarely threatening to break.
Those figures proved the difference eventually as Wawrinka, at full stretch to even reach, let alone return most of them, was eventually worn down.
"I started holding more easily, I'd had to save so many break points before that," Opelka said of the turnaround. "I made some adjustments and was then able to spend more energy trying to break."
Opelka said that he had "always been a pretty good mover - underrated maybe. Some guys don't expect it when they play me for the first time."
Elsewhere in the men's singles draw, Karen Khachanov saw off Feliciano Lopez 4-6, 6-4, 7-5, 6-4. Milos Raonic, the finalist from 2016, defeated Robin Haase via three tiebreaks and David Goffin beat Jeremy Chardy in straight sets.
Benoit Paire and Roberto Bautista Agut both progressed after their opponents were forced to retire with injury.