Rafael Nadal overcame a marathon first-set tiebreaker to move into the Australian Open quarter-finals with a straight-sets win over French veteran Adrian Mannarino on Sunday.

Nadal continued on his search for a record-breaking 21st grand slam title with the 7-6 (16-14) 6-2 6-2 victory at Rod Laver Arena.

The Spaniard will take on either third seed Alexander Zverev or Canadian Denis Shapovalov in the last eight on Tuesday.

Nadal has only dropped one set in his first four matches at the Australian Open but the opening set against Mannarino was epic, with the sixth seed edging his opponent after 80 minutes.

The 2009 Australian Open winner trailed 3-0 in the tie-break but fought back to level it up, eventually taking the set 16-14 with his seventh set point.

Nadal assumed complete control from that set on, dominating the second and third to win in two hours and 40 minutes.

The 35-year-old was powerful, sending down 16-7 aces, while he won 88 percent on his first serve across the match. Nadal only offered up two break points for the match.

DATA SLAM: Nadal on the right track

Nadal has dropped 38 games across his four matches at the Australian Open, making light work of Mannarino in the latter two sets which collectively took as long as the first.

The Spaniard won in Melbourne in 2009 but lost finals in 2012, 2014, 2017 and 2019, yet without Novak Djokovic and Roger Federer at this year's event it looms as his best chance for years to lift the title and he seems in good health and form.

WINNERS/UNFORCED ERRORS

Nadal – 42/22

Mannarino – 37/34

ACES/DOUBLE FAULTS

Nadal – 16/6

Mannarino 7/4

BREAK POINTS WON

Nadal – 5/17

Mannarino – 1/2

Two-time major winner Simona Halep says she is playing the best she has for months after cruising into the 2022 Australian Open fourth round with a straight-forward win over Danka Kovinic.

Halep, who is the 14th seed after an injury-ravaged 2021, eased past the Montenegrin 6-2 6-1 on Saturday. The former world number one has dropped only 14 games on her way to clinching a spot in the second week in Melbourne.

The Romanian, who was the runner-up at the 2018 Australian Open, won the Melbourne Summer Set 1 title and is re-discovering her best form.

"(This is the best I've played in) the last months," Halep said after Saturday's win.

"I feel great physically, first of all. Mentally I'm confident and also strong, I would say.

"Feeling the game. Feeling joy out there. I think that helps me to be positive and to be confident that I have a chance every time I step on the court.

"I feel I'm in a good spot. I really trust that I can play good tennis here."

Halep will play Frenchwoman Alize Cornet in the fourth round on Monday, with the Romanian having won 11 consecutive sets.

Cornet had knocked out third seed Garbine Muguruza in the second round, while sixth seed Anett Kontaveit and US Open winner Emma Raducanu have also bowed out in Halep's quarter of the draw giving her a good shot at a deep run.

"I feel fresh. I feel that the pressure is off," Halep said. "I feel also that I have expectations from myself, but they are good expectations because I have worked a lot in the off-season.

"I have no injuries. That helps me to be in a good spot mentally and also with confidence."

Adrian Mannarino stumbled across the winning line at 02:33 local time as his late-night efforts at the Australian Open proved too much for last year's surprise package Aslan Karatsev.

A battling third-round performance from Frenchman Mannarino sets up a showdown with Rafael Nadal next, and the 33-year-old will hope he has sufficient energy left for that daunting task.

The left-hander clinched victory after four hours and 38 minutes of hard duelling with Karatsev on Margaret Court Arena, with a scattering of fans staying until the bitter end, long enough to hear Mannarino swear during his victory interview.

The watershed in Melbourne had of course long passed by the time Karatsev netted a backhand on match point.

After his 7-6 (7-4) 6-7 (4-7) 7-5 6-4 win, world number 69 Mannarino said: "I was enjoying it, you know. I love rallying, and I was just feeling in shape today, it was pretty cool to play."

But he was aware the match was running well into the early hours, saying: "I realised I was just looking at the clock sometimes, and I was thinking, 'F***'. I don't feel good to be honest'.

"I'm kind of exhausted. But it was cool, and I was so focused on what I had to do. I was not thinking about the fact I was tired.

"I was like, 'Okay, go get the next point'. The crowd was cool. Some people had a couple of drinks, I guess, and were commentating more than anybody."

Mannarino's win took him into the fourth round in Australia for the first time, and it meant he accounted for the 18th seed, a player who won the Sydney Classic last Saturday.

Karatsev reached the semi-finals at Melbourne Park last year as a virtual unknown, before going on to establish himself over the course of the season.

Remarkably, this Friday night into Saturday morning epic was far from the latest finish in Australian Open history, with Lleyton Hewitt having won a five-setter against Marcos Baghdatis at 04:34 local time in 2008.

Jenson Brooksby enhanced his growing reputation and set up showdown with Diego Schwartzman in the European Open semi-finals.

The 20-year-old American, who took a set off Novak Djokovic and rattled the world number one at the US Open, is shaping up as potentially his country's biggest hope for the future in the men's game.

Californian Brooksby crushed Spain's world number 44 Alejandro Davidovich Fokina 7-5 6-0, and second seed Schwartzman awaits after the Argentinian took down another 20-year-old American, Brandon Nakashima, scoring a 6-4 6-2 quarter-final win.

Schwartzman is the man who ended Andy Murray's hopes at the tournament in Antwerp.

Brooksby, who had to win two qualifying matches to reach the main draw, said: "Tomorrow will be a great match. I'm really looking forward to it. I'll get some rest tonight and get ready to battle again tomorrow."

The other semi-final will see Italian top seed Jannik Sinner take on South African seventh seed Lloyd Harris following their respective straight-sets wins over Arthur Rinderknech and Marton Fucsovics.

There will be an all-Russian semi-final at the Kremlin Cup in Moscow, after Aslan Karatsev and Karen Khachanov won through to the final four.

Second seed Karatsev sank the hopes of Frenchman Gilles Simon, breaking serve five times on the way to a 6-4 6-3 win, while third-seeded Khachanov edged out Australian John Millman. A 7-5 7-6 (7-4) grind featured 19 aces by Khachanov, the 2018 Kremlin Cup champion, who saved four set points in the second set.

Marin Cilic thrashed Pedro Martinez 6-1 6-2 to set up a tussle with Ricardas Berankis, the Lithuanian ending Adrian Mannarino's run with a 6-2 7-6 (7-1) success. Frenchman Mannarino had stunned Russian top seed Andrey Rublev in the previous round.

Roger Federer came from two sets to one down to survive a Wimbledon scare from Adrian Mannarino, who was forced to retire after suffering a knee injury.

Federer was expected to come through his first match at the All England Club since losing the 2019 final to Novak Djokovic with little difficulty.

That anticipation was increased when he claimed the first set, only for Mannarino to fuel hope of a first win over Federer in their seventh meeting by taking the next two sets.

The 20-time grand slam champion had re-established a measure of control in the fourth set when Mannarino was left in agony after his knee buckled at 4-2.

Mannarino attempted to continue but conceded the injury was too much to overcome in the opening game of the fifth with the score 6-4 6-7 (3-7) 3-6 6-2.

Federer lost just five points on serve in taking the opener, though he took only one of his six break points, with Mannarino proving a significantly tougher nut to crack in the second set.

The Frenchman did not face a break point and was surprisingly dominant in the tie-break, and he carried that confidence into the third, making six unforced errors to Federer's 10.

At that point, the biggest shock of the tournament looked to be on the cards, but Federer was back to his best in the fourth.

Imperious at the net, Federer hit 18 winners in the fourth and a decider already looked an inevitability by the time Mannarino's misfortune meant the Swiss could save energy before a second-round clash with either Richard Gasquet or Yuichi Sugita.

Top seed Matteo Berrettini beat Andy Murray to reach the quarter-finals at Queen's Club and Ugo Humbert upset Alexander Zverev at the Halle Open on Thursday.

Murray, a five-time champion at Queen's, was beaten 6-3 6-3 by Italian Berrettini as the three-time grand slam champion struggled a day on from being given a Wimbledon wildcard.

The former world number one beat Benoit Paire in his first ATP Tour singles match since March on Tuesday, but the 34-year-old revealed he is still being troubled by a groin injury after his loss to Berrettini and knows he must raise his game.

Murray said: "I actually felt my movement was actually quite good for both of the matches. My tennis today was not very good. That's the thing that I'll need to improve the most.

"Then there is still a slight niggle in the groin, so [I have] to try to get rid of that discomfort between now and Wimbledon. I need to be playing points, basically. I played two sets in preparation for this event.

"I do feel like I genuinely have been hitting the ball well in practice, but then like today when you're under a bit more pressure and stuff and you're having to make very split-second decisions when you're on the court, if the guy is serving 140 miles an hour, like, it's difficult to prepare for that."

Dan Evans made history earlier in the day, getting the better of Adrian Mannarino 6-4 7-6 (9-7).

With Jack Draper and Cameron Norrie having already progressed, Evans' win ensured there will be three Britons in the singles quarter-finals for the first time in the Open Era.

Feliciano Lopez will not retain his title in London after the Spaniard went down 6-2 6-3 to second seed Denis Shapovalov. Spanish veteran Lopez won in 2019, with last year's tournament cancelled due to the pandemic.

There will be no glory on home soil in Halle for German Zverev, who was taken out 7-6 (7-4) 3-6 6-3 by unseeded Frenchman Humbert.

Humbert has now beaten a top-10 player on every surface, with Zverev serving 20 aces but bowing out after his 22-year-old opponent claimed the only break of the final set.

Sebastian Korda battled past Kei Nishikori 2-6 6-3 7-5 in Halle, while Lloyd Harris also moved into the last eight at Lukas Lacko's expense.

Adrian Mannarino succumbed to a surprise Stuttgart Open first-round loss at the hands of James Duckworth on Wednesday.

The seventh-seeded Frenchman, knocked out by Aljaz Bedene in the first round at Roland Garros, was beaten 6-3 6-2 by a player ranked 65 places lower than him, with Duckworth outside the world's top 100.

Home hopes Yannick Hanfmann and Peter Gojowczyk progressed, the latter coming from a set down to beat Ilya Ivashka 5-7 6-4 6-2, but there was no such joy for fellow German Dominik Koepfer after he fell to wildcard Jurij Rodionov.

Elsewhere in the draw, there were wins for Feliciano Lopez, Sam Querrey, Dominic Stephan Stricker and Jordan Thompson. 

It proved to be a tough day for home players at the Lyon Open as Roger Federer found out who he will face first in the main draw in Geneva.

All four Frenchmen in action on Monday were knocked out in Lyon, including 2018 finalist Gilles Simon.

Aljaz Bedene knocked out the world number 68 in straight sets, two breaks of serve in each enough to secure a 6-2 6-3 triumph after one hour and 13 minutes on court.

Sebastian Korda overcame both Pierre-Hugues Herbert and the rain to progress to the second round, a 7-6 (7-5) 6-4 triumph wrapped up quickly following a delay.

Having been 5-4 ahead in the second set when play was halted, Korda clinched victory on his first match point upon the resumption, in the process snapping a run of four successive defeats on the ATP Tour.

Cameron Norrie will take on top seed Dominic Thiem next after his 7-5 6-3 win against Corentin Moutet, while Ugo Humbert let slip a one-set lead as he was beaten by Yoshihito Nishioka.

Meanwhile, at the Geneva Open, there was a maiden victory for French teenager Arthur Cazaux as he came out on top against compatriot Adrian Mannarino.

The 18-year-old held his nerve in a decider despite this being his first tour-level contest; Reilly Opelka or Pablo Cuevas will be next up in the event.

As for Federer, he will begin his campaign on Tuesday, the 39-year-old having played just two matches so far this year after undergoing two knee operations in 2020.

The Swiss superstar now knows he will be up against Pablo Andujar, who overcame Australia's Jordan Thompson in straight sets.

Tennys Sandgren saw off Salvatore Caruso 6-3 6-4, while Dominik Koepfer came through a tight tussle with Benoit Paire that spanned two hours and 39 minutes.

Egor Gerasimov followed up his win over Andy Murray in Montpellier by powering past a man who once played second fiddle to the Scot.

The Belarusian saw off Aljaz Bedene, with a 6-4 7-6 (7-4) win carrying him through to the quarter-finals of the Open Sud de France.

Bedene was British number two to Murray heading into Wimbledon in 2016, when the Scot won his third grand slam title, but has since reverted to representing his native Slovenia.

He put up a fight against Gerasimov, who sank Murray in straight sets on Tuesday, but the 28-year-old from Minsk took three of his five break-point opportunities and held his nerve in the tie-break to advance.

The success for Gerasimov sets up a last-eight clash with Spain's Alejandro Davidovich Fokina, who scored a fine 7-5 6-2 win over Polish fourth seed Hubert Hurkacz.

Top seed and world number 13 Roberto Bautista Agut raced to a 6-0 6-3 victory over French qualifier Gregoire Barrere, but Croatian third seed Dusan Lajovic tumbled out, losing to Dennis Novak in straight sets.

At the Singapore Open, second seed John Millman fell by the wayside, the Australian slumping 6-4 6-1 to compatriot Matthew Ebden.

French top seed Adrian Mannarino encountered no such problems, ending the hopes of Roberto Marcora with a 6-3 7-5 win to join Ebden in the quarter-finals.