Teenage Czech qualifier Linda Noskova upset former world number one Victoria Azarenka to set up a semi-final showdown with Ons Jabeur at the Adelaide International.

In a match lasting almost three hours, Noskova triumphed 6-4 6-7 (3-7) 7-6 (8-6) to continue a dream run in Australia.

Noskova has already beaten third seed Daria Kasatkina in Adelaide and, on only her sixth appearance in a WTA main draw, has won five straight matches.

Further progress will be no easy feat, with top seed Jabeur – a losing finalist at Wimbledon and the US Open in 2022 – grinding out a 7-6 (7-5) 7-5 win over Ukrainian Marta Kostyuk.

On the other side of the draw, second seed Aryna Sabalenka held off a resurgent Marketa Vondrousova to win 6-3 7-5. The Belarusian had led 4-1 in the second set before losing four of the next five games and failing on match point prior to finally seeing it out.

Irina-Camelia Begu defeated fourth seed Veronika Kudermetova 7-5 6-4 to set up a last-four clash with Sabalenka.

At the ASB Classic in Auckland, top seed Coco Gauff outclassed Zhu Lin 6-3 6-2, winning 90 per cent of first-serve points, firing down eight aces, and not giving up a single break point.

Seventh seed Danka Kovinic also won 6-3 6-2 against Viktoria Kuzmova to set up a semi-final clash with Gauff, while world number 95 Ysaline Bonaventure ousted third seed Leylah Fernandez 6-4 6-2 to reach a first Tour-level semi-final where Rebeka Masarova awaits.

Gianluca Vialli has been remembered as a "legend" with "adorable swashbuckling ways" and a "gorgeous soul" after he died at the age of 58.

Former Italy, Cremonese, Sampdoria, Juventus and Chelsea striker Vialli passed away on Friday.

He was first diagnosed with pancreatic cancer in 2017 and was re-diagnosed with the disease in 2021, having been given the all-clear three years ago.

Vialli had a hugely successful playing career before winning more honours as Chelsea boss, then taking over at Watford before he joined great friend Roberto Mancini's staff to play a part in Italy's European Championship triumph in 2021.

Tributes poured in for Vialli after his death was announced.

Serie A club Sampdoria, for whom Vialli scored 141 goals, said: "We will remember you as a boy and a relentless centre forward, because heroes are all young and beautiful and you, since that summer of 1984, have been our hero. 

"Strong and beautiful, with that 9 printed on the back and the Italian flag sewn on the heart. Strongest leader of Sampdoria, paired up front with your twin Bobby Gol [Mancini]. In three words: one of us.

"It was a perception that remained after having bid farewell to Genoa and the South in tears. That's right: while raising trophies around Europe with different colours, tracksuits and clothes, Gianluca Vialli was a Sampdorian and the Sampdorians were with Gianluca Vialli."

Juve stated: "Such an intense sense of loss. We had been watching the news for days, hoping never to read this. But here we are, staring at the screen, and a flood of emotions crash inside of us.

"We have always been with you, Gianluca. Ever since you arrived in 1992, when it was love at first sight. You were one of the first pieces of a Juve side that would climb back to the top of Europe.

"We loved everything about you, absolutely everything - your smile, you being a star and leader at the same time, on the pitch and in the dressing room, your adorable swashbuckling ways, your culture, your class, which you showed until the last day in the black and white stripes.

"We have always been with you, and therefore also after our story together ended, following you with a smile when you brought a brand new Italian model of football to England, on and off the pitch, and only now do we understand how pioneering you were.

"And in recent years, fighting the last battle with you, being moved by you when, in excellent form, you lifted the European Championship trophy, coincidentally in London, in 2021. And even then, we lifted that cup together.

"We have always suffered along with you, including the anxiety of these last few weeks. And again, in the end, we had to cry, but this time tears of loss.

"We are not original in confessing that we don't know how to get on in a world without Gianluca Vialli, even though we know that, as we have always been with you, now it will be you, forever with us. Even if that doesn’t comfort us, at least not right now."

Chelsea also gave an emotional tribute to their former talisman and boss.

The Premier League club said: "As soon as he walked through the door at Stamford Bridge when already a global football star, Luca declared his wish to become a Chelsea legend.

"It is a target he undoubtedly reached, revered for his work on the pitch and in the dugout during some of the most successful years in our history.

"Loved by fans, players and staff at Stamford Bridge, Luca will be sorely missed not just by the Chelsea community, but the entire footballing world, including in his native Italy, where he was such an iconic figure."

Graeme Souness, Vialli's team-mate at Samp, told Sky Sports: "I can't tell you how good a guy he was. Forget football for a minute, he just a gorgeous soul.

"He was just a truly nice human being. I went to Italy when I was 31 years old and he was 20. He was just fabulous to be around, a fun-loving guy, he was full of mischief, such a warm individual and a fabulous player.

"My condolences go to his family and his wife. They have been blessed that their paths crossed, the kids were blessed to have a Dad like that and his wife was blessed that she was married to a man like that."

Dennis Wise, Vialli's captain at Chelsea, tweeted: "My heart is broken today. I will miss you my friend, love you Luca."

Jack Butland has joined Manchester United on loan from Crystal Palace for the remainder of the 2022-23 season.

The Red Devils had been in the hunt for extra competition at goalkeeper after Martin Dubravka was recalled from his own temporary spell by Newcastle United.

United boss Erik ten Hag had confirmed to the media on Thursday that Butland was set to arrive and provide competition to David de Gea and Tom Heaton, and the move was confirmed on Friday.

"This is an amazing club and one that I am now proud to represent. I'm really looking forward to working with an unbelievable goalkeeping group, supporting each other every day to create the best training and playing environment for the team," Butland told United's official website.

"I've played against David de Gea and represented England alongside Tom Heaton; they are top-class keepers, and I am relishing the opportunity to compete alongside and support them as team-mates.

"There is a lot that this group can achieve this season and I'm excited to play my part in helping everyone to reach these ambitions."

Butland, 29, has 87 Premier League appearances to his name and has represented England on nine occasions.

Pep Guardiola joked he is a "genius" and took advice from a journalist for the pivotal substitutions that helped Manchester City to a 1-0 win at Chelsea.

Jack Grealish teed up fellow sub Riyad Mahrez just three minutes after entering the fray in the second half at Stamford Bridge on Thursday.

Guardiola had earlier shaken things up at the break with Rico Lewis and Manuel Akanji replacing Kyle Walker and Joao Cancelo after a lacklustre first-half showing from his side.

Asked about the inspired changes, Guardiola quipped: "I'm a genius! 

"In the last press conference it was [journalist] Jamie Jackson, and he said 'why did I make a substitution on 81 minutes against Everton?' And I took notes and I thought about him at half-time and I changed it at half-time."

Expanding on his thought process, Guardiola explained: "The first half was sloppy. We didn't create much, our pressing was so poor we were not well organised and in the second half especially with Manuel and Rico we were better.

"All managers try to make subs to improve the team. Sometimes the team are losing, but you are playing well. So why should I change when I have the feeling they are doing well? Why should I do it? 

"Today, after 20 minutes, because you have to give the game a little bit of time, I realise I don't like what I'm seeing. Why do you have to wait? 

"Everyone saw it, from the first minute of the second half it was a completely different Manchester City."

It was an important win for City, who have trimmed the gap to leaders Arsenal back to five points after the Gunners were held to a goalless draw by Newcastle United on Tuesday.

Guardiola is content with the position he finds his side in, stressing the difficulty of motivating a team that has won four titles in the previous five seasons.

"We could lose here, but now we have a five-point gap. We have three less points to play for," he added.

"It means a lot, but we have to prove ourselves because it is normal to be in this position after four Premier Leagues in five years.

"We have the mindset that in November the people believe we are already champions, and this is impossible.

"Other teams that don't have this pressure because people say in September that City are going to win.

"After four Premier Leagues in five years it is not easy to push them again. That is why I am satisfied after what happened in recent years.

"We'd prefer to be closer but with the way Arsenal play they deserve to better. For us it was so important, especially in the second half, to be aware that we can do it again and again and again."

Joe Mazzulla called for the Boston Celtics to put on a show "over and over again" after they swept the Dallas Mavericks aside on Thursday.

The Celtics dished out a 124-95 defeat to the Mavericks at American Airlines Center on a great night for Jayson Tatum.

Tatum came up with his first triple-double of the NBA season; scoring 29 points, providing 10 assists and taking 14 rebounds in a brilliant all-round display.

It was only the second triple-double of his career and took Boston to 27-12, upstaging Luka Doncic as the Mavericks' seven-game winning streak ground to a halt.

Interim coach Mazzulla wants to see consistency from the Eastern Conference leaders Celtics, who got back on track after suffering back-to-back losses.

He said: "They showed me they can do it one time. They have to do it over and over again."

Jaylen Brown put up 19 points and seven claimed rebounds, while Mavericks superstar Doncic finished with 23 points, nine rebounds, and three assists before being left on the bench for the final quarter.

Mazzulla added: "When we're at our best, we play really good basketball on both ends of the floor with high effort for a long period of time.

"And then we go through a couple of games where we lose that. What I love about tonight was we did bounce back."

Michael Malone will always allow his Denver Nuggets team to enjoy the wins but said "I'm not going to party and celebrate" after a rout of the Los Angeles Clippers on Thursday.

Jamal Murray top scored with 18 points as the high-flying Nuggets ran out 122-91 winners at Ball Arena to improve to 25-13 on the season and 15-3 on home court.

It was another statement victory in a season full of excellent performance and leaves the Nuggets top of the Western Conference, with an identical record to the Memphis Grizzlies.

Head coach Malone encouraged his players to enjoy the moment, while also emphasising there is plenty of work still to be done.

"I've been around people who would not allow themselves to enjoy the wins, to enjoy the moment. I'm not that guy," Malone said.

"But I'm also not going to party and celebrate.

"That was a hell of a win for us. A convincing win, from beginning to end. Everybody contributed. 

"We're in first place in the Western Conference. We're not there yet. But we're on our way. I like where we're at and, more importantly, I like who I'm going there with."

Murray scored 13 of his 18 points in a blistering first quarter and it was a welcome performance considering his hit-and-miss form since returning from an ACL injury that ruled him out of last season.

Following a 124-111 defeat to the Minnesota Timberwolves last time out, Malone said with Murray on the plan ride home for a heart-to-heart.

"He takes ownership. He has to help himself as well," Malone said of Murray.

Murray added that the win shows the level the Nuggets have to aspire to on a consistent performance.

He said: "Wins like this give us a lot of confidence and build a lot of chemistry. Sets a standard for us."

The NFL has confirmed the suspended Cincinnati Bengals-Buffalo Bills' Week 17 game will not resume, with teams to consider a neutral side for the AFC Championship game.

The Bengals-Bills game was suspended after Damar Hamlin collapsed during the first quarter due to a cardiac arrest. Hamlin was resuscitated on the field, then rushed to the University of Cincinnati Medical Center, where he has remained in intensive care, but encouragingly has made "substantial progress" in the past 24 hours.

NFL commissioner Roger Goodell explained the decision had "no perfect solution", which comes ahead of the final regular season round of fixtures with significant playoff implications, and was based on three key factors.

Goodell stressed that the game's cancellation would not impact any team's qualification or elimination from the postseason, while he was eager to have the playoff scenario clarified for all sides ahead of Week 18. He added that delaying the playoffs one week to play the game was unfair on all other clubs, which guided their decision-making.

The statement revealed that NFL team owners will attend a Special League Meeting on Friday to consider a resolution recommended by the Competition Committee to have the AFC Championship game played at a neutral site if the participating teams could both have mathematically been the No.1 seed if they had played an equal number of games.

That decision affects the Bills (12-3) and Bengals (11-4) along with the Kansas City Chiefs (13-3). The NFL stated three scenarios whereby the AFC Championship game being played on a neutral site would come into effect.

- If Buffalo and Kansas City both win or tie, a Bills-Chiefs championship game will be at a neutral site.

- If Buffalo and Kansas City both lose and Baltimore wins or ties, a Bills-Chiefs championship game will be at a neutral site.

- If Buffalo and Kansas City both lose and Cincinnati wins, a Bills or Bengals v Chiefs championship game will be at a neutral site.

The Baltimore Ravens (10-6) may also be impacted if they win against the Bengals in Week 18, leading to a match-up in an AFC Wild Card game, with the site to be determined by coin flip.

"As we considered the football schedule, our principles have been to limit disruption across the league and minimise competitive inequities," Goodell said in the statement.

He added: "This has been a very difficult week. We continue to focus on the recovery of Damar Hamlin and are encouraged by the improvements in his condition as well as the tremendous outpouring of support and care for Damar and his family from across the country.

"We are also incredibly appreciative of the amazing work of the medical personnel and commend each and every one of them."

Jayson Tatum registered his second career triple-double as the Boston Celtics ended the Dallas Mavericks' seven-game winning streak with a 124-95 victory on Thursday.

Tatum finished the game with 29 points, 14 rebounds and 10 assists plus one steal and two blocks. The MVP candidate shot eight-of-22 from the field and two-of-eight from beyond the arc, scoring 11-of-12 from the stripe.

The Celtics improved to 27-12 with their merciless display, which comes amid a tough stretch for the Eastern Conference leaders, who had dropped seven of their past 12 games, including giving up 150 points last game to the Oklahoma City Thunder.

Luka Doncic was kept to only 23 points for the Mavs, after a five-game run averaging 44.5 points. Doncic, who shot none-of-six from three-point range, was benched in the fourth quarter amid the blowout.

Tatum also struggled from beyond the arc, but Marcus Smart made up for it with four-of-nine triples in his 15 points, while Malcolm Brogdon hit three-of-five three-pointers in his 15 points off the bench.

Jaylen Brown scored 19 points with two three-pointers with seven rebounds, three assists and two blocks.

Nuggets rout Clippers despite Jokic being quiet

The Denver Nuggets re-claimed top spot in the Western Conference with a 122-91 domination of the Los Angeles Clippers, who slumped to their fourth straight defeat.

The Nuggets, who secured their 10th straight home win, prevailed without a great contribution from MVP Nikola Jokic, who managed 12 points with six rebounds and nine assists.

Jamal Murray top scored with 18 points, including four three-pointers for Denver, who led by as much as 43 points. The Clippers shuffled their deck ahead of a back-to-back with Kawhi Leonard scoring six points in 18 minutes.

The Nuggets lead the west with a 25-13 record ahead of the Memphis Grizzlies, also 25-13, who won 123-115 over the Orlando Magic with Ja Morant scoring 32 points.

Lauri's career-high ends Jazz's five-game skid

Lauri Markkanen scored a career-high 49 points as the Utah Jazz snapped their five-game skid with a 131-114 victory over the Houston Rockets.

Markkanen posted 18 points in the first quarter on his way to the equal 15th highest single-game scoring performance this season.

The Finnish forward sparked a 14-0 fourth-quarter run which put the game to bed. Jalen Green scored 30 points for Houston, while Kevin Porter Jr added 23.

Rain has forced the third day of the third Test between Australia and South Africa at the SCG to be abandoned without a ball being bowled on Friday.

Persistent downpours in Sydney mean Australia captain Pat Cummins faces a dilemma on when to declare with his side in complete control at 475-4 with Usman Khawaja (195*) and Matthew Renshaw (5*) at the crease.

Time is running out for Australia to complete a clean sweep of the three-game Test series, after 57 overs were lost on the opening two days before Friday's complete washout.

The Sydney forecast is for improved weather on the remaining two days, with a shower or two predicted for Saturday, followed by partly cloudy conditions without any rain on Sunday.

There are 196 overs remaining in the Test, meaning Cummins will need to be decisive, but likely will allow Khawaja to reach a maiden double hundred.

Australia will be motivated to secure the victory clinch their first-ever spot in the ICC World Test Championship final to be played in June.

The Aussies are due to travel to India for a four-game Test series starting in February.

Sydney's rain curse persists

Sydney's poor run of rain impacting Tests in January continues, with a total of 25 days washed out due to rain in 110 Test matches at the SCG. Over the past eight years, 64 per cent of days during the SCG Tests have been impacted by rain.

Elsewhere, Perth has never had an entire day's play washed out, while Hobart (one) and Adelaide (two) have had minimal issues, while Brisbane and Melbourne have lost eight and nine full days respectively. 

The New York Jets have conceded they may have been better served easing Zach Wilson into the starting quarterback role after a disastrous second season.

The 2021 NFL Draft second overall pick endured a tough season with the Jets, who were eliminated from playoff contention on the weekend on the back of a five-game losing run, where he was benched twice and ultimately lost the starting spot to Mike White.

This season, Wilson has started nine games with a 54.6 per cent completion rate for 1,688 yards with six touchdowns and seven interceptions. The BYU graduate started 13 games in his rookie season in 2021.

Jets offensive coordinator Mike LaFleur said: "In hindsight, it probably would've benefited [him] just to sit back and learn a little bit and watch a veteran and just kind of grow in this league - kind of in the backseat, watching.

"Get better in practice, get better through the scout team and all that. But that wasn't the course that we went."

The Jets added veteran Joe Flacco in a midseason trade to bolster their quarterback options, while White had no NFL experience in preseason when they backed in Wilson to start.

LaFleur conceded he had not done a good job in helping Wilson develop to his full potential.

"In two years, yeah, we haven't done our job with him, right?" he said. "Any player at any position that isn't producing to the level they're capable of, as a coach, we failed them.

"There's a two-way street with it. The player has to meet us in the middle of it, but you want all these guys to play at their absolute best.

"We all know Zach hasn't played at his absolute best. He has shown spurts. He has shown the talent. Like [coach Robert] Saleh said yesterday, through hell or high water, we're going to work with him."

The Jets' struggling offense has been a big reason for their five-game losing streak which ended their postseason bid, managing only four touchdowns in the past five games.

Collin Morikawa, Jon Rahm and J.J. Spaun share the lead after carding nine-under-par rounds of 64 on the first day of the season-opening Tournament of Champions in Hawaii on Thursday.

Two-time major winner Morikawa reeled off a career-best six straight birdies from the 10th to 15th holes, before ending his round with a birdie on the par-five 18th.

Fellow American Spaun was an early leader with five birdies on his front nine, enjoying a run of four consecutive birdies from the 12th to the 15th too.

Former world number one Jon Rahm, who was among the last to finish the day's play, bounced back from a bogey on the 14th hole, birdieing three of his final four holes to grab a share of the lead.

The trio are one stroke ahead of South Korean Tom Kim, who managed two eagles in his eight-under-par round of 65. Kim holed out spectacularly off one bounce on the sixth hole from 116 feet, while he repeated the feat on the 15th after a fine approach which was one of the best shots of the day.

Six players are next at seven under, including world number two Scottie Scheffler who finished his round with four birdies on the final five holes.

Scheffler is tied with Tom Hoge, Aaron Wise, Sungjae Im, Matt Fitzpatrick and Mackenzie Hughes.

Six players are a further shot back including Jordan Spieth, Viktor Hovland and Hideki Matsuyama.

Jalen Hurts was a limited participant at Philadelphia Eagles practice again on Thursday but there are positive signs towards him playing in Sunday's regular season finale against the New York Giants.

Hurts suffered a sprain to his right throwing shoulder in the Eagles' 25-20 win over the Chicago Bears on December 18 and missed their past two games, both losses to the Dallas Cowboys and New Orleans Saints with Gardner Minshew starting at QB.

Philadelphia takes on the Giants on Sunday where victory will clinch the NFC top seed for the Eagles, but a defeat will leave them vulnerable, with the Cowboys potentially even jumping them to take out the NFC East.

Eagles quarterback Hurts has been a key part of their success this season, but has not been able to fully participate in practice since sustaining the sprain.

Philadelphia team-mate A.J. Brown revealed that Hurts took first-team reps on Thursday in a positive sign.

"We're all excited. We're all excited to see him back, doing his thing," Brown told reporters.

"He's locked in for sure. He definitely had a tempo about him today, even in the walkthrough. He was telling guys to 'come on, hurry up, get going.' Glad he's back."

Prior to the injury, Hurts was an MVP candidate with a 67.3 per cent completion rate for 3,472 yards with 22 touchdowns and five interceptions. He has also rushed 747 yards and 13 touchdowns.

Eagles head coach Nick Sirianni said earlier in the week that Hurts' status is "day by day", with no rush to make a decision on his availability.

Buffalo Bills quarterback Josh Allen is adamant his side will be ready to take the field on Sunday against the New England Patriots in honour of Damar Hamlin's request.

The Bills returned to practice on Thursday for the first time since Monday's game against the Cincinnati Bengals was suspended mid-game after Hamlin collapsed having suffered a cardiac arrest on the field.

Hamlin had to be resuscitated on the field and has been in intensive care in hospital in a critical condition since, but the Bills provided a medical update stating he was showing "remarkable improvement" on Thursday.

Hamlin's father Mario spoke to the Bills players and insisted that he and his son want them to play on Sunday.

"He didn't tell us, he demanded us," Allen told reporters. "You can't not honour his request to go out there and charge forward to the best of our abilities.

"Obviously, we'll be playing with less heavy hearts now, knowing that today's news was a lot of tears of joy. To know that's what he wants and that's what his dad wants, I think guys are excited to get out there."

Allen said "I do" when asked if he believed the Bills' players would be ready to take to the field on Sunday as scheduled.

"For every person it's going to be a little different. Putting that helmet back on today was really good for our team to go through that progress," Allen said.

"Some people are going to be changed forever after being on that field and feeling those emotions. The updates that we keep getting on Damar are lifting our spirits. Leaning on each other. We've had some open, honest and deep talks.

"We've had some unbelievable embraces as men, just hugging somebody, you need every bit of it. The fact we keep hearing good news about Damar keeps pushing us forward."

Allen conceded it would be difficult not to let the Hamlin situation enter his mind when they enter the field on Sunday, but insisted they had to shut it out.

"It's hard not to let it creep into your mind," he said. "We've been reassured this is the freakiest of freak accidents.

"The mental aspect of it, going out on that field, if you have that thought, that's putting yourself at risk even more.

"Coach [Sean McDermott] has done a great job making sure guys understand that and that mentally you need to be bought into.

"As humans, it's hard not to feel that way, but just to know the track record of the league. Obviously, there's injuries, that's part of sport and this is the worst possible case you can think of."