Kyrie Irving is ready to play again and looks set to line up for the Brooklyn Nets on Wednesday after a run of seven missed games.

The six-time All-Star has been absent for personal reasons and received a hefty punishment for breaching NBA health and safety protocols while away from the team.

That was imposed after Irving was filmed apparently attending a large birthday gathering while not wearing a mask.

But Irving confirmed on Tuesday he is back in training with the team, putting him in line to face the Cleveland Cavaliers on Wednesday evening.

Explaining his absence, Irving said on Tuesday: "There's been a lot of family and personal stuff going on, so I just want to leave it at that."

Coach Steve Nash said: "I expect him to play tomorrow. It's great to have Kyrie back in the building. We've missed him and I'm excited to get him back out on the floor."

Irving was fined $50,000 by the NBA and docked over $800,000 in salary for the two games he missed while ordered into quarantine by the league.

He will have a notable new teammate on his return to action, with the Nets having landed James Harden from the Houston Rockets.

Harden, an eight-time All-Star, bolsters the scoring power already in Brooklyn's ranks, with Irving averaging 27.1 points per game in his seven outings for the team this season and Kevin Durant posting 30.6 PPG in 11 appearances.

The new arrival meets with Irving's approval.

"I'm very excited to have James here," Irving said. "We're just moving on to the next phase of developing as a team, building some camaraderie and having fun.

"It's just really exciting to be able to play with great players."

He spoke of the experience that Harden brings and said: "Adding that to our locker room is going to be great for us."

Without Irving, the Nets have won five of their past seven games to improve to 9-6 for the season.

The New York Mets fired general manager Jared Porter on Tuesday, a day after it was reported he sent unsolicited text messages and lewd images to a female reporter in 2016.

The Mets hired the 41-year-old Porter only last month, but new team owner Steven Cohen announced his firing on Twitter.

Cohen wrote: "We have terminated Jared Porter this morning. In my initial press conference I spoke about the importance of integrity and I meant it. There should be zero tolerance for this type of behavior."

In response to a question about the firing of Porter, Cohen added: "No action would of set a poor example to the culture I'm trying to build."

Shortly after Cohen’s tweet, the Mets issued a statement from team president Sandy Alderson.

It read: "The New York Mets have terminated general manager Jared Porter, effective immediately. Jared's actions, as reflected by events disclosed last night, failed to meet the Mets' standards for professionalism and personal conduct."

Porter was the Chicago Cubs' director of professional scouting in 2016 when ESPN said he began sending unsolicited and inappropriate text messages and images to the reporter after meeting her in June of that year.

He has yet to make a public comment on ESPN's allegations.

Porter spent the next four seasons with the Arizona Diamondbacks as their senior vice president and assistant general manager.

The Portland Trail Blazers have been dealt another injury blow with shooting guard CJ McCollum ruled out for at least four weeks.

McCollum hurt his foot during the victory over the Atlanta Hawks on Saturday and sat out Monday's game against the San Antonio Spurs, which ended in a 125-104 loss for the Trail Blazers that saw them slip to 8-6.

Portland were already without center Jusuf Nurkic due to a right wrist fracture and he has been joined on the sidelines by McCollum.

A statement tweeted by the Trail Blazers read: "Further imaging reveals CJ McCollum with a small hairline fracture to the lateral cuneiform in his left foot and a mid-foot sprain.

"McCollum will wear a walking boot and be re-evaluated in four weeks."

Prior to his injury, McCollum was performing at the highest level of his career. Through 13 games he was averaging 26.7 points and 4.8 made three-pointers per game, both of which would be career highs.

Asked about adjusting to the losses of Nurkic and McCollum after the defeat to the Spurs, All-Star point guard Damian Lillard said: "It's tough. We've had that type of luck over the years, it's always been something.

"But we pride ourselves on be able to adjust to that and keep our stride whatever comes our way. We trust our experience in these situations.

"It's not always going to be perfect. When a guy goes down, or in our case two of our best players go down, the next game might not be the game where it just happens. It might be a game or two or three where you struggle and then it clicks, it might be one game or you might not miss a beat.

"It wasn't the outcome we wanted but we're still going to believe in each other, we're still going to have a high level of accountability and I think next game we're going to be better and we should expect to be better."

LeBron James was frustrated with the performance and the officials as the Los Angeles Lakers suffered a fourth-quarter collapse against the Golden State Warriors.

Defending NBA champions the Lakers went into Monday's home game on a run of five straight wins.

They raced into an early 19-point lead and still led by 14 in the fourth quarter but fell to a surprise 115-113 loss.

The game marked the 284th time in his career James and his team took a double-digit lead into the fourth quarter at home in the regular season and postseason. Per Stats Perform data, it was the first of those in which LeBron's team lost the game in regulation.

It was not what the Lakers needed before starting a seven-game road trip on Thursday against the Milwaukee Bucks.

"I think we just had some tough breaks, some tough calls against us in the second half that slowed our pace down," said James, who finished with 19 points, five rebounds and five assists.

"We couldn't get back into a rhythm.

"Obviously you are frustrated any time you lose, especially when you know you could have played better. We know we can play much better. We can all learn from that and apply it to next game."

James was not happy about being called for travelling, adding: "It is so funny because the very next play Draymond [Green] gets into the lane and slides his foot and it is not called.

"The same official who called me for the travel is right there on the play and told me he didn't travel."

Anthony Davis had 17 points, 17 rebounds and seven assists, while Dennis Schroder topped the team with 25 points, but they fell to 11-4 overall and 4-4 at home this season.

Lakers coach Frank Vogel added: "We got outplayed in the second half. We got hesitant on the offensive end, and a little casual at certain points in the game."

Stephen Curry scored 26 points to inspire another Warriors comeback, as the team improved to 7-6.

Earlier in January the Warriors beat the Lakers' city rivals, the Los Angeles Clippers, despite being 22 behind in the third quarter.

"We kept our composure and the second unit was amazing both halves," Curry said.

"We got some momentum in the second half to give us a chance and carry us down the stretch. It was similar to the Clippers game. We've done it twice now but want to get leads early."

The Warriors play at home against the San Antonio Spurs on Wednesday.

They had lost their past two games against the Denver Nuggets and Indiana Pacers despite a combined 55 points from Curry.

The two-time MVP is averaging 28.2 points per game, on pace for the second-best scoring season of his NBA career.

Kevin Durant and James Harden feel experience has proven key in a "seamless" transition to their partnership with the Brooklyn Nets.

The former Oklahoma City Thunder duo combined to impressive effect as the Nets battled to a 125-123 win at home to the Milwaukee Bucks on Monday.

Durant won the game courtesy of a three-pointer with 36 seconds remaining to reach 30 points, while adding nine rebounds and six assists.

Harden followed up his dream debut against the Orlando Magic with 34 points, 12 assists and six rebounds.

It is the first time two team-mates have had at least 30 points in each of their opening two games for a franchise, per ESPN.

"We have been through a lot in this league," Durant said about his link-up with Harden.

"Experienced a lot, and for us to bring it together now and combine what we've learned over this time and try to play great basketball, I think it was pretty seamless for us.

"It was an easy transition, especially with James handling the ball a lot coming in. So we're still trying to find our way, and we've still got room to improve, but it's a solid start."

Harden is yet to practice with the Nets since his blockbuster trade from the Houston Rockets.

"We were young in Oklahoma City," Harden – who impressively followed up his triple-double against the Magic – said when asked about his connection with Durant.

"We are grown men now. We know what we want. We really know the game of basketball now. 

"We are not those young guys that want to run around and just shoot and dunk all day.

"And then for me, I sit back and I know what player Kevin Durant is. He's one of the best players to ever touch a basketball. This is a huge win for us."

With four straight wins moving them to 9-6, the Nets are next in action at the 6-7 Cleveland Cavaliers on Wednesday.

The Nets' other star, Kyrie Irving, is set to return to practice on Tuesday. He missed his seventh straight game against the Bucks, who got 34 points from Giannis Antetokounmpo.

"This is what they do – they wake up, come to the game and they score 30," Antetokounmpo said. 

"If you're not aggressive and you're not locked in against them, they're going to score 50."

James Harden and Kevin Durant guided the Brooklyn Nets past the Milwaukee Bucks, while the Los Angeles Lakers' winning run was ended.

The Nets extended their winning streak to four with a 125-123 victory over the Bucks on Monday.

It was their second win in as many games since Harden joined in a trade from the Houston Rockets last week.

The eight-time All-Star had a double-double of 34 points and 12 assists, while Durant finished with 30 points against the Bucks.

Durant hit a clutch three-pointer with 36.8 seconds remaining to lift the Nets to 9-6.

Bucks star Giannis Antetokounmpo had 34 points, 12 rebounds and seven assists.

After five straight wins, the Lakers went down to the Golden State Warriors 115-113.

Warriors star Stephen Curry had 26 points, while Dennis Schroder top-scored for the Lakers with 25.

LeBron James (19 points) missed a three-pointer on the buzzer for the Lakers, who had Anthony Davis post a double-double of 17 points and 17 rebounds.

Awesome Adebayo, Oladipo makes Rockets debut

Bam Adebayo posted 28 points and 11 rebounds to guide the Miami Heat past the struggling Detroit Pistons 113-107.

Victor Oladipo arrived at the Rockets following Harden's exit, and he had 32 points and nine assists on debut, but it came in a 125-120 loss to the Chicago Bulls.

DeMar DeRozan (20 points and 11 assists) led an even team effort in the San Antonio Spurs' 125-104 victory over the Portland Trail Blazers. DeRozan (20), LaMarcus Aldridge (22), Patty Mills (21) and Rudy Gay (21) became the first group of four Spurs team-mates to each score 20-plus points in a game since 2010.

A double-double from Trae Young (20 points and 13 assists) helped the Atlanta Hawks past the Minnesota Timberwolves 108-97.

Doncic below his best

Luka Doncic described himself as "selfish" despite a triple-double in a Dallas Mavericks loss to the Bulls on Sunday, and he was below his best a day later. He went four-of-11 from the field for just 15 points in 34 minutes in a 116-93 humbling at the hands of the Toronto Raptors.

Clutch KD

Durant hit the crucial three-pointer to lift the Nets to their victory.

Monday's results

New York Knicks 91-84 Orlando Magic
Atlanta Hawks 108-97 Minnesota Timberwolves
San Antonio Spurs 125-104 Portland Trail Blazers
Memphis Grizzlies 108-104 Phoenix Suns
Brooklyn Nets 125-123 Milwaukee Bucks
Toronto Raptors 116-93 Dallas Mavericks
Miami Heat 113-107 Detroit Pistons
Chicago Bulls 125-120 Houston Rockets
Golden State Warriors 115-113 Los Angeles Lakers

Thunder at Nuggets

Nikola Jokic (averaging 25 points, 11.4 rebounds and 10.3 assists this season) and the Denver Nuggets (6-7) take on the Oklahoma City Thunder (6-6) in one of two games scheduled for Tuesday.

Victoria Azarenka called for greater understanding from players stuck in hotel quarantine ahead of the Australian Open.

After being exposed to coronavirus on flights, 72 players – including Azarenka – have been forced into a two-week quarantine ahead of the tournament beginning on February 8.

Novak Djokovic reportedly made several requests, which were rejected, of officials for players in quarantine, while Roberto Bautista Agut compared the conditions to prison.

But amid complaints on social media, two-time Australian Open champion Azarenka pleaded for players to be more understanding in a measured statement.

"Dear players, coaches, entourage and Australian community. I would like to take a moment and address some of my colleagues as well as the media around the world," the Belarusian wrote on Twitter.

"This has been a very difficult time for a lot of us that did not expect to end up in the situation we are in today, myself included. To be in a 14-day hard quarantine is very tough to accept in terms of all the work that everyone has been putting in during their off-season – to be prepared for playing our first grand slam of the year. I understand all the frustration and feeling of unfairness that has been coming and it is overwhelming.

"We have a global pandemic, nobody has a clear playbook of how to operate at full capacity and without a glitch, we all have seen it last year. Sometimes things happen and we need to accept, adapt and keep moving.

"I would like to ask all my colleagues for cooperation, understanding and empathy for the local community that has been going through a lot of very demanding restrictions that they did not choose, but were forced to follow.

"I would like to ask to be sensitive as well to the people who have lost their jobs and loved ones during this horrible time for all of us around the world. I would like to ask all of us to have respect for people who work tirelessly to try to make our lives easier.

"I would like to ask the media to please have consciousness on the impact and influence you bring to this situation and to the community. I would like for the people in the community to know and understand that we have it as our top priority to ensure the health [and] safety of all the people.

"Lastly, I would like for us to please try to support each other as much as someone can or is willing to. Things are always easier when you have a compassionate environment and work together."

Victoria endured tough restrictions after a second coronavirus wave last year.

On Tuesday, the state recorded its 13th consecutive day of no locally acquired cases of COVID-19.

Roberto Bautista Agut labelled the quarantining of players ahead of the Australian Open a "complete disaster", comparing it to prison.

After being exposed to coronavirus on flights to Australia, 72 players are in hotel quarantine for two weeks ahead of the tournament starting on February 8.

Players have hit out at the conditions, although tournament director Craig Tiley insisted on Tuesday most were happy to be in Australia.

But world number 13 Bautista Agut slammed the position players had been put in.

Told he looked like he was in prison, the Spaniard told Sport5: "It's the same, it's the same, with Wi-Fi.

"These people have no idea about tennis, about practice courts, has no idea about anything, so it's a complete disaster because of that, because the control of everything.

"It's not Tennis Australia, it's the people from the government."

Victoria on Tuesday recorded its 13th consecutive day of no locally acquired coronavirus cases, with three of the four in hotel quarantine linked to the Australian Open.

Bautista Agut, a 2019 quarter-finalist at Melbourne Park, said two weeks in quarantine would be difficult.

"I did work in the room but it's not the same," he said.

"I was feeling very, very tight and I cannot imagine staying two weeks like this. It's really, really tough."

Australian Open tournament director Craig Tiley defended Novak Djokovic, saying the world number one had provided "suggestions", not demands.

With 72 players forced into quarantine for two weeks after being exposed to coronavirus on flights, Djokovic reportedly made demands regarding their conditions.

Among them, the eight-time Australian Open champion reportedly asked for players to be moved to private houses with tennis courts, with his requests rejected.

But Tiley played down the reports, saying Djokovic had simply made suggestions.

"Novak wrote a note, these weren't demands, these were suggestions," he told Channel 9 on Tuesday.

"But he too is understanding what two weeks of lockdown means."

Tiley also backed the players despite reports and social media posts suggesting they were unhappy about being forced into quarantine.

"Last night we spent quite a bit of time with the playing group going through a number of different items because they've just been here for a few days getting used to this quarantine environment," he said.

"I have to say on that call there were about 500 players and the vast majority are happy to be here, pleased to be here and really getting ready in the next two weeks to be able to get out and play in the lead-in events and then play the Australian Open on February 8.

"I think the reports we're reading and the things we're seeing doesn't represent the entire playing group. For the most part, they've been pretty good."

With the preparations of 72 players so far impacted by quarantine, there have been suggestions the Australian Open be changed to a best-of-three sets format in the men's draw.

But Tiley said he had no plans to make such a drastic change.

"We're a grand slam at the end of the day and right now three out of five sets for the men and two out of three sets for the women is the position we plan on sticking to, starting February 8," he said.

It was far from business as usual in the NBA again last week.

A total of 11 games were postponed due to stringent COVID-19 protocols, making it tough for some players and teams to find their rhythm early in the season.

Others have taken full advantage of opportunities presented to them by teams having to go deep into their rosters in order to fulfil fixtures.

We take a look at the players who had the biggest increases and decreases in production over the previous week.

RUNNING HOT…

Shake Milton

The Philadelphie 76ers have seen their roster badly affected by COVID-19 protocols and results over the past week have been a little patchy as a result – a pair of wins over the Miami Heat ended a run of three straight defeats but were followed by a loss to the Memphis Grizzlies. One who man stepped up, though, was Milton, who was averaging 14.1 points per game up to January 10. Last week he averaged 29.5 – a difference of 15.4, the highest in the league. 

Duncan Robinson

Last season's beaten finalists the Heat are in somewhat of a rut having lost four of their past five to slip to 4-7 for the season. Robinson has done his best to help reverse the fortunes, though, having averaged 23.3 points last week – his improvement of 12.1 from his average at January 10 was second only to Milton. Part of the improvement can be attributed to his prowess from three-point range over with Robinson averaging five per game, compared to 3.1 for the season prior to the week. Team-mate Tyler Herro has also impressed – averaging 25.5 points per game for the week, a +9.9 difference to his average leading into it.

Bruce Brown

With the Brooklyn Nets trading away Jarrett Allen, Taurean Prince, Caris LeVert and Rodions Kurucs – as well as a ton of picks – to acquire James Harden, Brown received greater minutes in Steve Nash's rotation. He shot 8-of-11 from the field for 16 points in a win over the Denver Nuggets and had a double-double of 15 points and 14 rebounds against the New York Knicks the following day. However, when Kyrie Irving returns, Brown can expect to see a significant reduction in his time on the floor.

Luka Doncic

The Dallas Mavericks star started to find his range from three over the past week, going 5-of-9 from beyond the arc against the Charlotte Hornets and 6-of-11 versus the Chicago Bulls. He averaged four three-point makes per game last week, a significant improvement on his figure of 1.63 on the season he went in with. Doncic also had 16 rebounds and 15 assists against the Bulls to record his 29th triple-double, surpassing the legendary Michael Jordan on the all-time list. However, he ended up on the losing side against Chicago and blamed himself: "That's on me, that game. I was being selfish a little bit because I had 30 points in the first half. That wasn't me in the second half."

GOING COLD...

Fred VanVleet

Four years after going undrafted, VanVleet was rewarded for his role in the Raptors' recent success as he signed a four-year, $85million deal to stay with Toronto ahead of this season. His performances have not yet justified that outlay, however, and the past week was a particularly disappointing one. The struggling Raptors actually enjoyed a minor upturn in form, winning back-to-back games against the Hornets to improve to 4-8, but VanVleet scored just 14 points per game, 8.1 down on his prior season average of 22.1. There was at least some solace in a first double-double of the season as he stacked up 10 assists in the second Hornets game.

Kevin Huerter and De'Andre Hunter

It was not a good week for the Atlanta Hawks, their shock 3-0 start long since forgotten. Three Atlanta players were at least 6.0 points down on their prior scoring average for the year, yet it was the decline in three-point shooting that really stood out. Huerter and Hunter had each impressed from beyond the arc in the early weeks of the campaign, making 2.4 and 2.1 threes per game respectively. But a remarkable drop-off saw both make just two across three games - two of which were defeats - to each average 0.7. It meant the team as a whole made just five threes in the loss to the Utah Jazz and six as they went down to the Portland Trail Blazers.

George Hill

The Oklahoma City Thunder again traded assets for picks ahead of this season but have still managed to operate at .500 so far, beating the Bulls after defeats to the San Antonio Spurs and the Los Angeles Lakers. However, Hill's outstanding early form is showing signs of tailing off. A new arrival this year, the 34-year-old point guard was outperforming his career average of 1.2 threes made per game heading into the week (1.9) but did not make a single one of his seven attempts from beyond the arc against the Spurs, Lakers or Bulls.

Terrence Ross

After a strong start to the season with the Orlando Magic, Ross went into last week averaging 17.9 points and 2.44 three-pointers made per game. However, in meetings with the Nets, Boston Celtics and Milwaukee Bucks, he shot 3-of-15 from beyond the arc – an average of just one make per game. It's therefore unsurprising he also suffered one of the biggest decreases in points per game to 11, with 23 of his 33 total points coming against Brooklyn.

Rassie Erasmus says South Africa will "explore any option" to ensure they do not miss out on facing the British and Irish Lions.

The Lions are scheduled to lock horns with the world champions in July and August, but the tour is in doubt due to the coronavirus pandemic.

Playing the series in the United Kingdom has been mooted as a potential alternative to the Lions flying out to South Africa.

Delaying the tour until next year could be another alternative and a decision is expected to be made next month, with talks among the Lions board ongoing.

South Africa's director of rugby Rassie Erasmus, who who coached the Springboks to Rugby World Cup glory in 2019, says the Webb Ellis Cup holders are willing to be flexible over where and when they take on the Lions.

"We desperately want to play the Lions, and we will do anything to play them," he said in a press conference.

"This series only comes around every 12 years. I have heard the different calls and opinions about the tour, and although we didn't play in the Rugby Championship because of player welfare, it was also because we knew there was this big series in 2021.

"If option one of playing in South Africa doesn't work out, we will go to option Z to make it happen.

"We don't want to lose out on the Lions series, we feel we deserve to play against them. I want to, Jacques Nienaber [Springboks head coach] wants to, the players want to. So from our side, we'll do anything.

"But yes, we will explore any option to play the Lions, we will play next year, we will play over there. This is the view from a player and management perspective."

Nick Kyrgios has labelled Novak Djokovic "a tool" after the world number one reportedly issued a list of demands for players under strict quarantine conditions ahead of the Australian Open.

Defending women's singles champion Sofia Kenin is among 72 players who are consigned to their hotel rooms due to positive coronavirus tests on flights they took to head out for the first grand slam of the year.

Players have posted social media clips of them training and in their rooms, with some complaining about the conditions they are having to contend with for 14 days.

Bernard Tomic's girlfriend, Vanessa Sierra, expressed her grievances over the standard of food and having to wash her own hair and dishes during her period of quarantine with the world number 228 so far.

Djokovic does not have to adhere to such strict rules in Adelaide, where he is due to play in an exhibition tournament before the Melbourne major, as he arrived on a virus-free flight.

Yet the 17-time grand slam champion is said to have asked for less time in isolation for players, requested they are given private housing with access to training courts, and better food.

Kyrgios tweeted on Monday: "Djokovic is a tool. I don't mind Bernie [Tomic] but his Mrs obviously has no perspective, ridiculous scenes Man."

Three weeks before the Australian Open is due to get underway, Victorian premier Daniel Andrews said the players will not be getting any "special treatment."

He said: "The virus doesn't treat you specially, so neither do we.

"I know there's been a bit of chatter from a number of players about the rules.

"The rules apply to them as they apply to everybody else and they were all briefed on that before they came and that was the condition on which they came. So, there's no special treatment here."