Johanna Konta became Britain's first female Grand Slam quarter-finalist since 1984 after she edged out Ekaterina Makarova in a nail-biting contest at the Australian Open.
It is 32 years since Jo Durie reached the last eight at Wimbledon but Konta ended the wait for the next quarter-finalist as she came from behind to beat Makarova 4-6 6-4 8-6 on Margaret Court Arena.
The British number one will now face Chinese qualifier Shuai Zhang for a place in the semi-finals.
At three hours and four minutes, it was the second longest match of the women's tournament so far - although Konta could have settled matters sooner had she not been broken when leading 5-4 in the decider.
It made no odds, however, as she served out at the second time of asking, before flinging her racket into the air in celebration.
That winning feeling... @JoKonta91 is the first British woman to reach the #AusOpen quarter-final since 1983 pic.twitter.com/BRlmdCVtA3
— Australian Open (@AustralianOpen) January 25, 2016
"Mentally, emotionally, physically, I left it all out here on court," Konta said. "I tried to hang in there and just run after every ball and keep fighting. That's all I can do and fortunately I was able to capitalise on some opportunities and close out in the end."
The victory marks Konta's best ever performance at a Grand Slam, going one stage further than her breakthrough US Open run to the fourth round in September.
It also continues a remarkable rise for the Sydney-born 24-year-old and Makarova was arguably the opponent that started it all as Konta's win when they met at Eastbourne last summer was the first of seven victories against top-20 opponents.
Victoria Azarenka was plagued by anxiety about her beloved Denver Broncos in the NFL playoffs but the Belarusian had few nervous moments in a 6-2 6-4 win over Barbora Strycova that put her into a fifth Australian Open quarter-final.
After wrapping up victory over the unseeded Czech, twice champion Azarenka wasted little time in finding out if her favourite team had booked their place in the Super Bowl.
"I played smart, I played aggressive and I took my opportunities. Can someone tell me if the Broncos won?" she asked the crowd at Rod Laver Arena during a courtside interview.
"Yes!" she screamed after being told the Broncos had beaten the New England Patriots 20-18 in the AFC title game.
"I was emotional the whole morning about it," the 2012 and 2013 Melbourne Park champion later told reporters. "I'm a huge sports fan, so when I'm a fan of somebody, I'm a die hard.
"I'll get nervous. I get emotional ... When I play, I'm in control. I'm in control of my body, of my emotions. That's all on me. When it's somebody else doing it and I have absolutely no control, I go loco. I will scream ... Break the TV or something."
Azarenka's screams were heard throughout the one hour, 26 minute match against Strycova but the former world number one was a model of composure in securing her fourth consecutive win at Melbourne Park without conceding a set.
Strycova could manage only two break points when trailing 4-3 in the last set but Azarenka saved both and eased to victory when her opponent committed a 33rd unforced error.
Azarenka's bid for a third Melbourne Park title continues against seventh seed Angelique Kerber.
Konta now faces China's Zhang Shuai, ranked 133rd and an even less expected quarter-finalist having arrived in Melbourne on the back of 14 consecutive first round exits in Grand Slams.
Zhang, however, added American Madison Keys to her list of scalps which also includes second seed Simona Halep and France's Alize Cornet.
"I think Shuai Zhang is actually on a bit more of an incredible journey than myself," Konta said.
"She won her first main draw match at a Slam. I think that's an incredibly special moment.
"I played Zhang a couple of times. Actually both times were very good matches.
"We're talking about a quarter-final of a Grand Slam, so whoever I'm going to play it's going to be an incredibly good player.
"Right now I'm just looking forward to just recovering well and having a good night's rest."
