Wimbledon wrap: Federer cruises through while crowd boos Nick Kyrgios strop at umpire
Richard Gasquet took advantage of a Wimbledon strop from Nick Kyrgios to avenge last year's second-round defeat to the Australian and reach the quarter-finals.
The Court Two crowd booed Kyrgios as he appeared to deliberately lose the third game of the second set, with the 20-year-old having been riled at being handed a code violation for swearing by umpire James Keothavong.
He showed only slightly more appetite for the rest of the second set, and went on to lose the match 7-5 6-1 6-7 (7/9) 7-6 (8/6).
The combustible Canberra native did not bother swinging his racquet at two serves, which he let pass for aces, and meekly swished another two into the net, in an act of sporting surrender rarely seen on the tennis court.
Kyrgios could face a heavy fine from the International Tennis Federation over his antics. He also sparred with Keothavong over switching his socks at the first changeover in the third set.
The umpire looked to think he was taking too long, with Kyrgios saying: "If you're going to get angry with me for that, that's another level. Mate, Rafa (Rafael Nadal) and stuff play 30 seconds in between points every time and all I'm doing is putting my sock back on."
In an always eventful Court Two clash, Gasquet smashed his racquet at the end of the third set, after squandering two match points, having let nine slip by when losing to Kyrgios 12 months ago.
"Everybody could understand why I was frustrated," Gasquet said afterwards, accepting he could also face a fine.
Canadian Vasek Pospisil reached his first grand slam quarter-final by upsetting Viktor Troicki on Court 12, fighting back from two sets behind to oust the Serbian 22nd seed 4-6 6-7 (4/7) 6-4 6-3 6-3.
While Kyrgios headed away to cool off and to play mixed doubles with Madison Keys, Gasquet addressed the question of his opponent's errant behaviour.
"He was a little bit angry, a little bit frustrated, I saw that," said the 21st seed from France, who reached the semi-finals in 2007.
"I knew in the third set, it could be a different game.
"Sometimes it happens. He's not the only one to do it. Even the best player in the world did it in the past.
"It's true, he give me a little bit (in the second set). But I knew actually it wouldn't be the same in the third and fourth.
"It's good when the opponent is not playing good, is doing some mistakes. It's good for me. I have nothing to complain about it."
French Open champion Stan Wawrinka awaits Gasquet in the quarter-finals, which for the men take place on Wednesday.
Wawrinka was made to toil for his win over David Goffin of Belgium, with the Swiss fourth seed edging through 7-6 (7/3) 7-6 (9/7) 6-4.
And Andy Murray will be the next opponent for Pospisil after Britain's 2013 Wimbledon champion, seeded third this year, overcame Croatian veteran Ivo Karlovic 7-6 (9/7) 6-4 5-7 6-4 on Centre Court.
Roger Federer made smooth progress through to a 13th Wimbledon quarter-final as the Swiss second seed brushed aside Roberto Bautista Agut, winning 6-2 6-2 6-3 to set up a crack at Gilles Simon next.
Frenchman Simon was a surprisingly comfortable 6-3 6-3 6-2 victor against Czech sixth seed Tomas Berdych, while Croatia's US Open champion Marin Cilic reached the last-eight stage with a 6-4 4-6 6-3 7-5 win against American Denis Kudla.
Defending champion Novak Djokovic was tied at two sets all with big-serving South African Kevin Anderson when fading light brought their match to a halt on Court One.
Anderson had taken the first two sets on tie-breaks, setting up the possibility of a major upset, before improving Djokovic battled back to make the match scoreline 6-7 (6/8) 6-7 (6/8) 6-1 6-4 overnight.
Tournament officials ruled out the prospect of moving the match to finish on Centre Court, where lighting allows matches to continue until an 11pm curfew.
Although the match between Gilles Simon and Gael Monfils was moved to complete on the main show court on Saturday night, a tournament spokesperson said that was because of Sunday's rest day, and the urgency to avoid the match being held over to Monday.