The Miami Dolphins are looking for a first playoff victory since 2000 when they travel to face the Buffalo Bills in Sunday's Wild Card clash, where two quarterbacks will be the talk of the town.

While the Bills will look towards Josh Allen, who has thrown just one interception in 228 career passing attempts in the postseason (0.4 interception rate, the lowest in NFL playoff history among those with a minimum 200 attempts), the Dolphins will be hoping to get by without Tua Tagovailoa.

Miami head coach Mike McDaniel confirmed ahead of the game that Tagovailoa, who has not featured since Christmas Day, remains unavailable due to concussion – an issue that has plagued a turbulent season for the Dolphins.

With Tagovailoa leading the offense, the Dolphins are 8-4 in games he has finished and 1-4 without him, while a passer rating of 105.5 leads the NFL, ahead of Kansas City Chiefs quarterback, and leading MVP candidate, Patrick Mahomes.

In Tagovailoa's absence, the Dolphins face a tough test in their bid to end a streak of four consecutive losses in the playoffs and will need Tyreek Hill to step up in their first postseason appearance since the 2016 season.

Hill smashed the franchise record for receiving yards this season, tallying 1,710 yards and becoming the first Dolphins player to register 1,400 receiving yards for the season, the next closest being Mark Clayton in 1984 with 1,389 yards.

The Dolphins' big worries for Sunday's clash will be Tagovailoa's absence and a lack of playoff experience, a complete contrast to the Bills, who have seen Allen continue to grow and have reached the playoffs in five of the last six seasons.

Only Mahomes (41) has thrown more touchdown passes than Allen (35) this season, though a tally of 14 interceptions is the joint next highest in the NFL behind Davis Mills and Dak Prescott (both 15).

Allen has thrown only one interception in his playoff history, however, with 14 touchdowns in the postseason, and averaged 10.3 yards per attempt in the 2021 playoffs – something the Bills will hope he can repeat this year.

A close game could be on the cards, though, with the Bills overcoming the Dolphins by just a three-point margin less than a month ago with a 32-29 victory in Buffalo, while the reverse clash in Week 3 saw Miami victorious 21-19.

That win was a significant one for the Dolphins, preventing a fourth consecutive series streak for Buffalo and standing as only the second win for Miami in the last 12 meetings.

Williams have named James Vowles as their team principal for the 2023 Formula One campaign, prising him from his role as Mercedes' strategy director.

Williams finished bottom of the constructors' championship standings in 2022, the fourth time they have done so in the last five seasons.

That led Jost Capito to step down as team principal after two years at the helm, and Vowles will replace him on February 20 after being released from his contract with Mercedes.

Vowles has been with Mercedes since the team's 2010 inception, helping them win eight consecutive constructors' titles between 2014 and 2021 before they were usurped by Red Bull last year.

"I cannot wait to start with Williams Racing," Vowles told the team's website. "It's an honour to join a team with such an incredibly rich heritage.

"The team is an icon of our sport, one I greatly respect, and I am very much looking forward to the challenge.

"Williams Racing have placed their faith and trust in me, and I will do the same in return. The team has tremendous potential, and our journey together starts in a matter of weeks."

Williams' 2023 car will be launched on February 6, with newcomer Logan Sargeant set to partner Alex Albon in the upcoming campaign.

Mercedes team boss Toto Wolff, who previously worked at Williams, backed Vowles to make a success of his new role.

Wolff said: "While we are naturally sad to be saying goodbye to such a capable member of the team, I have no doubts whatsoever that he has all the necessary skills to become a fantastic team principal in Formula One.

"We wish him every success and are delighted that he will take this next step in his career with Williams, a strong technical partner of ours and one that has a place close to my own heart."

Cameron Norrie will get a chance to cap his New Zealand homecoming with a title at the Auckland Open.

The British number one, who spent much of his childhood in New Zealand and Auckland specifically, reached his first ATP Tour-level final in the city in 2019, and has repeated that feat this time out.

Norrie made light work of Jenson Brooksby on Friday, winning 6-3 6-4.

He will face Richard Gasquet, who progressed via walkover due to Constant Lestienne's withdrawal through injury, in Saturday's showdown.

Norrie has won all six of his matches this season, three in Auckland and three at the United Cup, where he beat Rafael Nadal.

"It was an absolute battle with Jenson. A lot of long rallies and I know how well he competes, so it was nice to get it done in straight sets," said Norrie.

"He puts the ball in such awkward parts off the court and I had to come up with a lot of really tough shots on the run and a lot of big passes.

"I was able to serve it out and stay really calm and get over the line, but he's a great player."

At the Adelaide International 2, defending champion Thanasi Kokkinakis fell just short of reaching the final again.

He battled back from a set down to force a decider against Roberto Bautista Agut, but it was the Spaniard who prevailed 7-6 (7-4) 3-6 6-3.

Bautista Agut will face Soonwoo Kwon in the final, after the world number 84 defeated Norrie's compatriot Jack Draper 7-6 (8-6) 6-7 (2-7) 6-3.

It's time for the Wild Card round on the road to Super Bowl LVII.

Things kick-off on Saturday when the in-form San Francisco 49ers welcome the Seattle Seahawks to Levi's Stadium, while the Los Angeles Chargers travel to Florida to take on the Jacksonville Jaguars.

A trio of games on Sunday see the Buffalo Bills host the Miami Dolphins, the Minnesota Vikings facing the New York Giants and the Cincinnati Bengals going up against the Baltimore Ravens, before the Tampa Bay Buccaneers and the Dallas Cowboys bring the round to a close on Monday.

Stats Perform has taken a look at the more pertinent stats heading into what should be another exciting three days of NFL action as the playoffs begin.

Seattle Seahawks (9-8) @ San Francisco 49ers (13-4)

This will be just the second playoff game ever between the Seahawks and 49ers (Seattle won the other in the 2013 NFC Championship Game).

The 49ers are on a 10-game winning streak, the 13th team in the Super Bowl era to enter the postseason on a double-digit winning streak. The previous 12 teams to do so were 7-5 in their first playoff game that season.

San Francisco won both regular season meetings but have never beaten a single team three times in one campaign (including playoffs).

Geno Smith led the NFL in completion percentage this season, becoming just the second Seahawk ever do so after Dave Krieg in 1991. With 30 touchdown passes, Smith became the third Seahawk to lead the NFC in that category, joining Matt Hasselbeck (2005) and Russell Wilson (2017 and 2018).

Christian McCaffrey has scored an offensive touchdown in each of his last six games, tied for the second-longest streak in the NFL this season. The last Niner to have a longer streak (including the playoffs) was Terrell Owens in 1998 (nine).

Miami Dolphins (9-8) @ Buffalo Bills (13-3)

The Dolphins have lost their last four games in the postseason, scoring just 24 points over those games. Only one team has scored fewer points over a four-game span in the playoffs in postseason history, the Giants from 1939 to 1944 (16 points).

Miami's hopes of improving on that poor record were reduced when starting quarterback Tua Tagovailoa (concussion) was ruled out of this playoff contest.

But they still have Tyreek Hill, who caught 119 passes for 1,710 yards this season – both career highs. No Dolphin had ever had more than 1,400 receiving yards in one season, with the next closest being Mark Clayton in 1984 with 1,389 receiving yards.

For the Bills, Josh Allen has thrown one interception in 228 career passing attempts in the postseason, the lowest rate in NFL playoff history.

This season, the Dolphins' offense led the league, averaging 6.85 yards on first down plays, while the Bills were third (6.13). The teams were close on defense on first down plays as well, with the Dolphins 14th (5.27 yards allowed per play) and the Bills 15th (5.39).

New York Giants (9-7-1) @ Minnesota Vikings (13-4)

This is the Vikings' 31st playoff appearance, currently tied with the Phoenix Suns and Utah Jazz for the most by any MLB/NBA/NFL/NHL team that has never won a championship.

Kirk Cousins finished with 25 or more TD passes and fewer than 15 interceptions for the eighth straight season. The only other QB in NFL history to have a streak as long is Tom Brady (10 straight, 2009-18).

The Giants are 8-2 in playoff games since the start of the 2007 season, the best record by any NFL team in that time. Four of the Giants' 16 previous playoff appearances in the Super Bowl era have ended in a Super Bowl victory (25.0 per cent), the highest percentage for any team.

Earlier this season, Daniel Jones became the second QB in NFL history to have 3000+ passing yards, 500+ rushing yards and no more than five interceptions in a season, along with Robert Griffin III in his 2012 Offensive Rookie of the Year campaign.

Elsewhere...

This will be the Chargers' first playoff appearance since 2018, when they beat Baltimore before falling to New England. The Chargers have won at least one playoff game in four of their last five appearances. They are also 3-0 against AFC South teams in the playoffs since the division was created in 2002.

The Bengals have won eight consecutive games, which is tied for the longest win streak in team history. The Bengals are the only current NFL team without at least one winning streak of at least nine games in their franchise history (regular season and playoffs).

Buccaneers star Tom Brady has thrown for 13,049 yards in his playoff career, nearly 4,000 more than the combined career total for the other 13 projected playoff starting quarterbacks this season (9,184 combined passing yards).

Nick Kyrgios insists he is serious about being ready to quit tennis the minute he wins a singles grand slam title.

The Australian went close last year to ending his long wait, only to lose in four sets against Novak Djokovic in the Wimbledon final.

Now aged 27, Kyrgios wants to achieve glory at a major to satisfy that urge, before stepping off the court for good. If it comes at the Australian Open over the coming fortnight, it will be all the better for him.

Asked whether he stood by his previous comments, Kyrgios said: "A hundred per cent. It's a lot of training, a lot of work, and I just want to be able to eat whatever I want, drink what I want to drink and just relax.

"It's a hard lifestyle, the dedication these guys show day in day out. I did a bit of that last year, had a great year to show the world I'm still one of the best.

"I'm going to try to do it this year, and hopefully I can do it, but it'll be hard."

Kyrgios is ranked 21st by the ATP, but that can be considered a false position, given he collected no points for his career-best Wimbledon run. The tours stripped the London slam of ranking points due to its banning of players from Russia and Belarus.

The 1,200 points Kyrgios would ordinarily have taken away from the All England Club would have nudged him towards a top-10 placing.

There is the tantalising prospect of Kyrgios facing nine-time Melbourne Park champion Novak Djokovic in the Australian Open quarter-finals this year, and they went through a light-hearted dress rehearsal on Rod Laver Arena on Friday.

Speaking after that exhibition match, Djokovic said Kyrgios' two wins from their previous three tour-level encounters meant the sky was the limit for the man from Canberra.

"He is 2-1 against me, so as far as I'm concerned he can win anything," said Djokovic.

According to Djokovic, Kyrgios had been unaware of the potential for a meeting between the pair in the Australian Open last eight.

Serbian Djokovic has done his homework though, and appears to have mapped out his potential route to what would be a record-equalling 22nd men's singles grand slam title.

"I have to be honest, I think most of the guys are studying the draw pretty seriously, but you have to take it one match at a time," Djokovic said, speaking on Channel Nine.

"We think every player has so much motivation and inspiration to be able to play his best in the court, to perform well, so you cannot underestimate anybody, you cannot take any match for granted.

"It's a hopefully long two weeks. I know Nick and I are in the same part of the draw – he didn't know that by the way. Before the match I told him."

Novak Djokovic returned to action in front of a packed Rod Laver Arena crowd for the first time in two years, and declared: "It's great to be back."

The nine-time Australian Open champion was denied a role in last year's tournament when his vaccination status, having refused a COVID-19 jab, led to him being detained in a Melbourne immigration centre and later deported.

He was briefly released in January 2022 to practise at Melbourne Park before the tournament began, only to be effectively thrown out of the country days later.

With Australia's border controls having since been relaxed, and vaccination status no longer a condition of entry, Djokovic has had the red carpet rolled out this year, befitting his status as the most successful male singles player in the Australian Open's history.

He faced Nick Kyrgios in an exhibition match on Friday evening in Melbourne, with the stadium court sold out and the match screened on national television.

Kyrgios won 4-3 2-4 10-9, in what was a largely light-hearted encounter, a jumped-up practice session. It inevitably lacked the intensity of their last meeting, when Djokovic prevailed in four sets in the 2022 Wimbledon final.

A fierce backhand from Kyrgios in the match tie-break briefly caught out Djokovic, who was wrong-footed and volleyed out of court before slumping to the floor as though shot.

There was more than a little dramatic licence about his fall, and about the match in general, typified by the pair being joined on court by wheelchair players and a pair of leading juniors for the decisive tie-break.

The result did not matter, though it will if these two meet in the quarter-finals of the year's opening grand slam, as they might after the draw was revealed on Thursday.

Djokovic, who did not appear hampered by a recent hamstring niggle, told the crowd: "It just feels great to be back in Australia, back in Melbourne.

"This is the court and the stadium where I created the best memories of my tennis career. Back in 2008 it was the first time I won a grand slam here, and 15 years later I'm here again, and I'm competing at a high level, so I must be grateful for this opportunity to be here.

"Thank you guys for welcoming me in a good way tonight, I appreciate it."

It was a night for jollity and camaraderie, but should both reach that quarter-final date, Djokovic said: "I don't think we'll be this friendly to each other."

Kyrgios, who defended Djokovic during last year's January crisis, said of the 35-year-old Serbian: "It's so important to have him around.

"One of the greatest already left us last year, Roger [Federer], and I don't think we actually knew how special the guys are to our sport, so every time Novak's around at these events I want to beat him, even though I can't at a grand slam."

The Australian Open begins on Monday, when Djokovic facing Spain's Roberto Carballes Baena first. Djokovic is chasing a 22nd grand slam title, which would equal the men's singles record held by Rafael Nadal.

Kyrgios, yet to win a singles slam, starts against Russian Roman Safiullin.

Iga Swiatek has no interest in what people expect from her and the world number one will not be "living in the past" as she targets more success this season.

Swiatek was in a class of her own last year, winning a staggering eight titles to firmly establish herself as the best player in the world.

A second French Open title and a maiden US Open triumph were the highlights for the 21-year-old in a stellar 2022.

The Pole will start her quest to win the Australian Open with a first-round match against Germany's Jule Niemeier at Rod Laver Arena on Monday.

Swiatek is the favourite to be crowned champion at Melbourne Park, but will not be putting too much pressure on herself.

"When I don't care about what people think and what their expectations of me are, it's easier for me to succeed," Swiatek told BBC Sport.

"That was what I tried my best to do in 2022.

"Although I'm proud of them, I'm not going to try to match my previous achievements because it would not be constructive.

"A season like that is something amazing and rare. Sure, I would love to do it again, but it's not advantageous to live in the past."

Swiatek was beaten by Danielle Collins at the semi-final stage of the Australian Open 12 months ago.

Belinda Bencic will play Daria Kasatkina in the final of the Adelaide International 2, though neither of them had to play a semi-final.

Bencic was due to go up against Veronika Kudermetova in the second scheduled semi-final on Friday, only for the Russian to withdraw due to a hip injury.

It was a similar story for Kasatkina, who received a walkover after Paula Badosa pulled out of their match, citing a thigh problem.

While Bencic and Kasatkina will now get the chance to claim a trophy early in the season, the focus for Badosa and Kudermetova will be on regaining fitness in time for the Australian Open, which starts next week.

Badosa was confident she can recover for the upcoming major, where she has been drawn against American Caty McNally in the first round.

"I'm really disappointed that I had to withdraw because I was really looking forward to the match," Badosa told reporters.

"When I was playing [against Beatriz Haddad Maia], it was a very tough match, especially physical, so I felt a little bit in my abductor. I felt like I pulled it a little bit.

"I feel a little bit worse, so I have the Australian Open ahead, and I hope I can recover for that."

Badosa needed two hours and 35 minutes to get past the Brazilian on Thursday, having knocked off Anett Kontaveit and Kaia Kanepi in the earlier rounds.

"I played three really good matches," the Spaniard said. "I think that helps me, as well, on my confidence for the tournaments ahead. Now it's something that I cannot control, so it is what it is."

At the Hobart International, Elisabetta Cocciaretto set up a showdown with Lauren Davis.

Sofia Kenin, the 2019 champion, fell 7-5 4-6 6-1 to world number 67 Cocciaretto, who has reached her first Tour-level singles final.

"It’s unbelievable for me to be here in the final of such a great tournament, and I’m really happy about my performance," Cocciaretto said.

"[Kenin is] a very good player, I was a junior when she won the grand slam [2020 Australian Open], so for me it's an honour to play against her."

Davis, meanwhile, saw off Anna Blinkova in straight sets. She has not featured in a Tour-level final since clinching the trophy in Auckland in 2016.

MVP candidate Jayson Tatum revealed he is dealing with several ongoing injuries but the Boston Celtics small forward is not making any plans to take a rest.

Tatum has played 41 of the Celtics' 43 games this season and led the way with a double-double in Thursday's 109-98 win over the Brooklyn Nets.

But the 24-year-old shot several airballs, finishing with seven-of-22 shooting from the field, making only two-of-10 from beyond the arc, leading to questions about whether injuries played a part and if he needs a rest.

"If you look at my hand, I've got tape on my wrist, tape on my thumb," Tatum told reporters.

"Tonight I had to tape my middle finger and ring finger together... I love to play too much to sit out.

"I had some bad misses, but I would rather be out there trying to help my team win than not.

"It'll be alright. But I did airball three or four times. But it's good when you can laugh it off. We still won, so it made the night better."

When asked if he needed a rest, Tatum quipped: "Something me and [Celtics general manager] Brad [Stevens] will fight about, so when it gets to that point, maybe you'll see me sit out, maybe not."

Only four players in the NBA have averaged more minutes per game this season than Tatum, who revealed he tweaked the wrist injury in Boston's opening game of the campaign against the Philadelphia 76ers, having dealt with a similar issue during last season's NBA Finals. The thumb and finger issues, however, are newer.

"One game into the season, I remember I hurt it against Philly and I've been taping it ever since," he said.

"I've had issues with my thumb and recently my ring finger. But we're just going to keep figure out ways to tape it and wrap it up."

Tatum is averaging 30.8 points per game on 47.1 per cent shooting from the field and 35.2 per cent shooting from three-point range for the season.

Spencer Dinwiddie got the credit from Luka Doncic after the Dallas Mavericks beat the Los Angeles Lakers in double overtime.

Doncic helped himself to a 10th triple-double of the season – only Nikola Jokic of the Denver Nuggets has more – as the Mavs triumphed 119-115 on Thursday at the Crypto.com Arena.

The 23-year-old top scored with 35 points and added 14 rebounds and 13 assists, ensuring the efforts of LeBron James – 24 points, 16 rebounds and nine assists – and Russell Westbrook, who grabbed 28 points off the bench, were not enough for the Lakers.

However, Doncic said it was Dinwiddie, who had six points in the second period of OT to pave the way for Reggie Bullock's game-winning free throw, who was responsible for the victory.

"He's an amazing player," Doncic said of Dinwiddie, who is averaging 16.1 points per game this season.

"He can dunk, he can score. He's really a great player, he helped us a lot. He won the game tonight."

Doncic forced both overtimes with clutch three-pointers, while Chris Wood delivered with a double-double of 24 points and 14 rebounds.

"I get to my step-back, that's it. We were down by three, so I was going to attack with a three," Doncic explained to TNT.

"It was very physical. Two overtimes, a lot of minutes. We had to stay focused, but we came through. A win is a win."

While the Mavs are fourth in the Western Conference with a 24-19 record on the season, the Lakers sit 13th with a sub-500 win percentage.

Matters could have been different had a foul been called when Tim Hardaway Jr appeared to have made contact with the shooting hand of Lakers small forward Troy Brown Jr during a three-point attempt with the scores tied at 101-101.

"It is what it is," Brown Jr told reporters. "At the end of the day, that's where I stand on it. I'm not deciding. At the end of the day, they're human.

"I thought there was contact, they don't call it. It is what it is. It's not my job to ref."

The Mavs were also unhappy with the officiating, with their owner Mark Cuban tweeting it had been the "worst officiated game". 

The New England Patriots are aiming to fend off the Cleveland Browns and the Carolina Panthers by extending inside linebackers coach Jerod Mayo's contract.

While Cleveland are looking for a new defensive coordinator after firing Joe Woods, while the Panthers want a new head coach.

There appears little appetite from the Patriots' side to let linebackers coach Mayo leave, however, with a team statement confirming talks on a contract extension were under way.

"The Patriots and head coach Bill Belichick have begun contract extension discussions with Jerod Mayo that would keep him with the team long-term," read a statement released to the media.

Mayo has spent his entire senior career with the Patriots since he was drafted by New England in the 2008 draft.

He retired in 2016 after three successive seasons derailed by injury, but joined the coaching staff in 2019.

New England also confirmed they are on the search for an offensive coordinator after a disappointing campaign saw them miss out on the playoffs.