American Frances Tiafoe has caused the first big upset of the Wimbledon men's singles tournament, eliminating third-seeded Stefanos Tsitsipas in straight sets.
Tsitsipas, playing his first match since his French Open final defeat by Novak Djokovic on June 13, was on the backfoot from the beginning against a 57th-ranked opponent who dominated 6-4 6-4 6-3.
The Greek also went out in the opening round on his past previous appearance at the grass court tournament in 2019, when he was seventh seed.
Wimbledon was not played last year due to the COVID-19 pandemic.
"It sounds pretty damn good," Tiafoe told the cheering 6,000 strong Court One crowd, sheltered by a roof from the drizzle outside, as the result was read out.
"Definitely one of my best (matches). From start to finish it was pretty clean."
Tsitsipas said afterwards he was not fully motivated.
"There have been times that I was much more motivated than this but that's no reason for me not to play well," he said.
"The conditions are the same for each single player. The bubble makes it really tiring week by week...
"My opponent played much better, significantly better, than me.
"There wasn't the drive that I was hoping for. There wasn't that same fighting spirit that I usually put out on the court."
Tiafoe broke serve in the opening game and it set the tone for a match in which Tsitsipas, who had said at the weekend that he was feeling more confident on grass, showed only occasional flashes of brilliance.
He failed to convert any of his six break points.
Tiafoe went 5-4 up in the second set, after Tsitsipas saved two break points, and held his nerve when the Greek had three chances to break back.
The American broke serve again at the start of the third set, saved two break points and then had three match points on the Tsitsipas serve to wrap things up in just over two hours.
He did it on the third as Tsitsipas netted a backhand.
"Today was big. I definitely needed that," the 23-year-old Tiafoe said.
"That guy's special, he's going to do a lot of great things... but not today."
Tsitsipas still has the doubles to play with his younger brother Petros.
Tiafoe's opponent in the second round will be Canadian Vasek Pospisil.