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NOW: Zheng Qinwen beats Oceane Dodin 6-0 6-3 in women's fourth round
Carlos Alcaraz beats Miomir Kecmanovic 6-4 6-4 6-0 to reach men's quarter-finals
Cameron Norrie beaten by Alexander Zverev 7-5 3-6 6-3 4-6 7-6 (10-3)
Victoria Azarenka loses to Dayana Yastremska; Elina Svitolina retires in first set against Linda Noskova, Daniil Medvedev wins
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Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Image source, Getty ImagesAlexander Zverev has four wins and three loss against Carlos Alcaraz, their most recent meeting was at the ATP Finals 2023 which Zverev won.
Zverev has won two and lost the other against Miomir Kecmanovic, Zverev won the most recent meeting at Chengdu 2023.
Alcaraz 6-4 6-4 2-0 Kecmanovic*
Image source, Getty ImagesCarlos Alcaraz has been in fine form so far on Rod Laver Arena, imposing his powerful and dynamic game upon Miomir Kecmanovic.
The pair have played some fun rallies but more often than not, it's the Spaniard who is coming out on top, much to the delight of his fans.
Image source, Getty ImagesZverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Image source, Getty ImagesMore from Alexander Zverev, from his on-court interview.
On his solid backhand and any tips for anyone?: "Just close your eyes and swing, and pray for the best. The prayers have to be before the match to be honest because when it is six-all in the fifth nothing really helps anymore.
"We all have great backhands in my family. No forehands – nobody really knew how to hold a tennis racquet on the forehand side, or the serve as well but I am lucky enough to be 6ft 6in.
"I guess it comes from the family."
On facing either Carlos Alcaraz or Miomir Kecmanovic next: "The match is still going on. Obviously I am a Kecmanovic number one fan right now. Obviously Carlos is from the new generation. He’s extremely young and successful already. He’s also incredibly respectful and the crowd always loves him.
"I know the crowd here doesn’t know him yet but trust me you’ll get to know him over the next 25 years. He has time but hopefully it is going to be my day in the quarter-finals."
Alcaraz 6-4 6-4 2-0 Kecmanovic*
The two-time Grand Slam champion means business in what so far has been his best performance of this year's Australian Open.
Carlos Alcaraz wastes no time in gaining the upper hand in the third set of this fourth round match as Miomir Kecmanovic is powerless to take any control.
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Let's hear from Alexander Zverev, who is into the quarter-finals. He says: "At the end of the day it’s a Grand Slam and everyone is playing their best here. Cam is definitely playing amazing tennis and I'm just happy to be through.
"Everybody always says the US Open is the most energetic and loudest Grand Slam but I feel like the Melbourne crowd is always the best.
"They’re very energetic, very loud but they are always very respectful. Thanks to everyone for making it such a great experience."
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Cameron Norrie has now lost his last seven matches against opponents ranked in the top 10.
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Alexander Zverev will appear in his 11th Grand Slam quarter-final. He has moved above Michael Stich (10) and is now second in the list for most slam quarter-finals by a male German player and only Boris Becker (23) has appeared in more during the Open Era.
Alcaraz 6-4 6-4 0-0 Kecmanovic*
On his third set point, second seed Carlos Alcaraz wins the second set to put him within touching distance of the quarterfinals.
The former world number one has stepped his level up and Serb Miomir Kecmanovic hasn't been able to create a break point opportunity in the match so far.
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Alexander Zverev has won all his five matches against Cameron Norrie; it was his first win against Norrie in a Grand Slam event.
Zverev has now won his last 14 matches against left-handed players, since he lost to Marc Andrea Huesler in a Davis Cup match in February 2023.
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Alexander Zverev will now play the winner of the Carlos Alcaraz versus Miomir Kecmanovic match, with the Wimbledon champion Alcaraz currently a set up in their last-16 tie.
*Alcaraz 6-4 5-4 Kecmanovic
Serb Miomir Kecmanovic has to save a set point at 30-40 and manages to do so with an unreturnable cross-court forehand which Carlos Alcaraz throws himself at but to no avail.
Spaniard Alcaraz steps up to the baseline to serve for a two sets to love lead...
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Mark Woodforde
17-time Grand Slam doubles champion on BBC Radio 5 Sports Extra and BBC Sounds
I think it will stay with Norrie for the rest of the evening, That’s where you hope his team to counsel him, talk to him.
What a match you just participated in.
May have come in second place but a lot of benefits you can take with you.
Zverev 7-5 3-6 6-3 4-6 7-6 (10-3) Norrie
Alexander Zverev sees off Britain's Cameron Norrie after a five-set thriller that lasted four hours, five minutes.
Zverev, the sixth seed, takes the match tie-break 10-3 to advance into the last eight of the Australian Open.
That ends British interest in the singles.
Norrie was a set and a break down and was so, so close to one of the best wins of his career. But it was not to be and the German advances.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Norrie sends a forehand into the net, 9-3 Zverev, who has SIX match points.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Zverev goes long for a lifeline for Norrie, 8-3 Zverev.
Alcaraz 6-4 5-3 Kecmanovic*
Image source, Getty ImagesSecond seed Carlos Alcaraz has upped his level on Rod Laver Arena and is in control of his fourth round match against world number 60 Miomir Kecmanovic.
To secure a break in this second set, he steps inside the court to end a long rally with a fizzing backhand winner.
The Spaniard holds his serve in the next game with some highlight-reel stuff to go within a game of a two sets to love lead.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Norrie nets with a forehand from the baseline, 8-2 Zverev, who is two points away from the quarter-finals.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Zverev with a backhand volleyed winner after going down the line to get Norrie out of position, 7-2 Zverev.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Norrie double fault, 6-2 Zverev, who is four points away from victory.
Zverev 7-5 3-6 6-3 4-6 6-6 Norrie
Zverev this time with the drop shot, Norrie gets there but flicks it wide, 5-2 Zverev.