Jelena Ostapenko was once again left bemoaning the electronic line calling system in place at the Australian Open after her quarter-final defeat to Elena Rybakina.

The Latvian did not blame the system for her loss, with Rybakina sealing a convincing 6-2 6-4 victory on Tuesday, but reiterated her belief that calls are being missed.

When asked following her fourth-round win against Coco Gauff whether she believed in the system, Ostapenko replied with a smile: "Honestly? No."

Speaking after her loss to Rybakina, she again smiled as she said: "I'm not really happy with the system they are using.

"A couple of times it was not even by a couple of centimetres. It was much more than that. But I cannot do anything about it, because it is the way as it is.

"First of all, [the calls] are really late sometimes. You already hit the ball, and then you hear 'out,' which is normally not the way it is with the line umpires. And second of all, some balls were quite, how you say, not a little out. They were [quite] a bit out and they were not called."

The number 17 seed – who suffered her first defeat in nine WTA-level quarter-finals – called for a return of the Hawk-Eye system and line judges, which was replaced at the Australian Open by the electronic system in 2021.

"Honestly, my personal opinion, I wish it would be the Hawk-Eye system and the line umpires, because I feel like that way it's more precise, and much [fewer] mistakes, in my opinion," the 2017 French Open champion added.

"... I think also, that way it looks a little better for me on the court how it is. Not just calling-wise, but in general how the court looks, because with no line umpires, for me, it looks a little empty."

Ostapenko was under no illusion that her own performance had not been at the level it was when she beat Gauff, and suggested that her participation in the mixed doubles late on Monday was a factor.

"I think in general today the level of the match was I think much lower than the previous one," she said. "I felt like me and Coco, we had a really high level of tennis and we played really well. It's a little shame that I couldn't bring this level of the tennis today.

"Obviously [Rybakina] was serving well, but I felt like already in the second set when I had the longer rallies with her, I was winning mostly, so that was my goal to make her play.

"I felt like maybe mixed doubles yesterday was a little bit not the right decision to play that late. But in general I think I can take only positive things out of this week, because it's only the beginning of the season, and if I keep working and keep playing the same way, I think I can be dangerous player."

Victoria Azarenka is through to her first Australian Open semi-final in a decade after beating Jessica Pegula in straights sets.

Azarenka had not reached the last four at Melbourne Park since going on to retain her title in 2013, but ended that wait with an impressive 6-4 6-1 victory over the third seed on Tuesday.

The 33-year-old from Belarus will do battle with Elena Rybakina for a place in the final following a commanding display on Rod Laver Arena.

Azarenka, the 24th seed, stormed into a 3-0 lead and although Pegula got back on serve at 5-3, she was a set down after being broken for a second time.

The experienced Azarenka clinically grasped her first break-point opportunity of the second set but Pegula hit straight back with a break of her own in the next game.

She was unable to turn the tide, though, as an inspired Azarenka dominated the remainder of the set with another two breaks and losing only a further two points behind her serve.

Azarenka, a winner of two mixed doubles grand slam titles since her last major triumph at this tournament 10 years ago, wrapped up the victory in an hour and 37 minutes.

Azarenka moves level with Graf

This quarter-final win for the former world number one took her tally of main-draw victories at the Australian Open to 47.

She is now level with the great Steffi Graf in sixth place on the list of the most women’s singles main-draw triumphs in this tournament in the Open Era.

ACES/DOUBLE FAULTS

Azarenka – 0/2
Pegula – 3/2

WINNERS/UNFORCED ERRORS

Azarenka– 17/20
Pegula– 19/31

BREAK POINTS WON

Azarenka – 5/13
Pegula – 2/4

The New York Giants hope to keep quarterback Daniel Jones at the franchise, general manager Joe Schoen has confirmed.

The 25-year-old is set to become a free agent at the end of the season, and was non-committal when questioned by the media after the Giants' Divisional Round loss to the Philadelphia Eagles on Saturday.

Jones was sacked five times in Philadelphia, but had a solid regular season, throwing 15 touchdowns and rushing for another seven in 16 games, while overall he completed a career-best 67.2 per cent of his pass attempts (317 out of 472).

Regarding his contract, Jones said on Saturday: "We will cross that bridge when we get there. I really enjoyed playing here... We will figure out where that goes, but I have nothing but love and respect for this organisation and the group of guys in the locker room."

Speaking at an end-of-season press conference on Monday, Schoen said: "We'd like Daniel to be here. He said it, there is a business side to it. But we feel like Daniel played well this season. He's done everything we've asked him to... We would like to have Daniel Jones back.

"Hopefully we can get something done with his representatives. That would be the goal, to build a team around him where he could lead us to win a Super Bowl."

Having turned down the chance to exercise the fifth-year option on Jones' rookie contract, it seems the Giants feel he has proven himself worthy and Schoen is eager to get to the negotiating table.

"It takes two. Both sides are going to have that conversation," he said. "We haven't crossed that bridge yet. There are tools at our disposal."

Jonathan Isaac expressed his gratitude to the Orlando Magic for "sticking with me" after he made a "surreal" long-awaited return in a 113-98 win over Boston Celtics.

Isaac had been out since tearing his ACL when the NBA restarted at Walt Disney World in August 2020 and wondered if he would ever be back on court in an NBA game.

The Magic forward's comeback finally came at Amway Center on Monday as Orlando ended the Eastern Conference-leading Celtics' nine-game winning run.

Isaac missed 211 games, but came off the bench to score 10 points, claim three rebounds and produce two steals in an appearance of around nine and a half minutes.

He said: "Much love to the Magic for sticking with me. And the Magic fans were excited, so I was just trying to bottle all that up in one moment. It was surreal."

Isaac added: "There were days where I was like I don't know if I want to keep going.

"But then again, I have to thank Christ. Being able to go back to my faith and say God has me on this journey for a purpose. I know that I was made to play basketball. I was made to give glory to God on this stage."

Isaac understandably felt the pace on his return from such a long absence.

"That kind of first wind got to me. That last minute I could barely talk I was breathing so hard," Isaac said. "But the second rotation in the second half, that four minutes, I started to just relax and just feel good."

Paolo Banchero top scored with 23 points for the Magic, while 26 points apiece for Celtics duo Jayson Tatum and Jaylen Brown were in vain.

Orlando are 18-29 down in 13th place in the Eastern Conference, with Boston leading the way at 35-13.

Giannis Antetokounmpo declared "the band is back together" after he made an impressive return in the Milwaukee Bucks' 150-130 victory over the Detroit Pistons.

Antetokounmpo had missed five games due to a sore left knee but scored 20 of his 29 points in the first quarter of his comeback at Little Caesars Arena on Monday.

Khris Middleton was also back in the line-up for the first time since last month following a knee injury of his own as the third-placed Bucks moved to 30-17 in the Eastern Conference.

Greek superstar Antetokounmpo said: "The band is back together" and added: "'I was trying to be aggressive and some shots fell."

Milwaukee scored an incredible 49 points in the first quarter, only two short of the NBA record, with Antetokounmpo taking centre stage.

Bucks head coach Bucks coach Mike Budenholzer was impressed with the way Antetokounmpo was able to hit the ground running.

"It was impressive to come out and play the way he did," Budenholzer said. "He did a little bit of everything, just like the whole group that in that [first] quarter."

Pistons head coach Dwane Casey feared the Bucks could come out firing.

"The first quarter is what I was afraid would happen," Casey said. "A championship-calibre team came in and put their stamp on the game at the beginning.

"We didn't respond, and that's how you give up a 49-point first quarter. I liked our fight after that, but this is a 48-minute game."

Sebastian Korda is taking plenty of positives away from the Australian Open, despite retiring hurt in his quarter-final against Karen Khachanov.

The American sustained an issue to his right wrist early in the second set, before calling an end to proceedings in the third when trailing 7-6 (7-5) 6-3 3-0.

Speaking at a press conference after his elimination, Korda said it was an issue he originally felt at the Adelaide International 1, where he was beaten by Novak Djokovic in the final.

"I had it a little bit in Adelaide a couple of weeks ago, but then it went away," he said. "During the matches, it was completely fine. Then just one kind of mishit return and it started to bother me a lot of after that.

"I knew what it was right away, right when I hit the return. I kind of felt that spot that I was feeling before. Some forehands I couldn't even hold the racquet. Volleying was almost impossible for me. So it was a little tough."

The number 29 seed was pleased with his work in Melbourne though, adding: "Obviously a lot of positives [to take]. Still a great tournament. My first quarter-final in a grand slam. I'm going to go forward with my head high and keep working."

Khachanov is through to his second-consecutive grand slam semi-final, having also made the final four at last year's US Open.

The Russian – who will face either Stefanos Tsitsipas or Jiri Lehecka next – sympathised with Korda but said he was just focused on getting the job done.

"It's part of the sport," Khachanov said. "It was a tough competitive battle until a certain moment, but at the end of the day you don't know how serious he's injured, right?

"I think the end of the second set, you know, when I pushed through and then took it with 2-0 lead by sets, it's extra pressure to the guy, if especially he has some issues physically.

"I think also the beginning of the third, you know, when you take this [3-0] lead, so from the opponent, the attitude change, it's way tougher to come back, so I think all those things together. I was quite focused and I knew what I had to do, how I had to push. I did it really well."

Elena Rybakina's Wimbledon success last year is helping her to progress at the Australian Open.

The number 22 seed reached the semi-finals after a convincing 6-2 6-4 victory against Jelena Ostapenko on Tuesday.

Fresh from beating world number one Iga Swiatek in the fourth round, the only thing that slowed Rybakina down against the 17th seed was a 20-minute rain delay in the first set.

She got through her quarter-final in just an hour and 19 minutes of play, and pointed to her experience at Wimbledon, which culminated in her maiden grand slam win.

"Of course I got all the experience at Wimbledon, and it's helping me now this time here in Australia and I know what to expect," she said.

"For sure it's just easier in this case after Wimbledon. [I am] feeling good on the court and just really enjoying every match I'm playing here."

Rybakina's serve was a key weapon again, hitting 11 aces and winning 76 per cent (29 of 38) of points on her first serve.

She now has a total of 29 aces in the tournament, the most by a women's player and more than her previous three Australian Open campaigns combined.

"[It is] tough to say for me, because I think compared to other girls, I'm quite tall," she said when asked if hitting aces are an under-used part of women's tennis. "I mean, there [are] other girls which are also strong and tall, but for sure I think it's not only about the height.

"I'm happy with my serve. I guess everybody else needs to think if, in this aspect, they need to work more or not, because some girls, they are fine maybe not with the speed, but they have good angles on the serve. They are opening the court. I think everybody is different, and everybody just trying to do what's best for them on the court."

The 23-year-old will face either Jessica Pegula or Victoria Azarenka in the final four, and is excited by once again being included in the business end of a grand slam.

"Of course in the beginning of the tournament, it feels like, 'Oh, it's such a long tournament'," she said. "Now it seems already close. I'm trying to focus just on one match.

"For sure it's close, that's why everybody I think is now going to try even harder, fight for every ball. It's only good players left. For sure it's going to be tough matches."

Karen Khachanov is through to his second-consecutive grand slam semi-final after progressing past Sebastian Korda at the Australian Open.

The Russian – who also made the final four at last year's US Open – was in control of the quarter-final when Korda retired hurt with a wrist problem at Melbourne Park on Tuesday.

Khachanov led 7-6 (7-5) 6-3 3-0 when the American called it a day, and will face either Stefanos Tsitsipas or Jiri Lehecka next.

The number 18 seed had to work hard to take the opening set, with Korda initially saving himself when Khachanov served for it at 5-3, but the latter eventually came through on a tie-break.

Some ferocious and accurate hitting from the baseline was proving to be decisive for Khachanov, hitting 12 winners in each of the first and second sets.

Halfway through the second set, 29th seed Korda received a medical timeout for a right wrist issue that was clearly impacting his forehand, and from there he won just one more game before retiring.

"For sure, back-to-back semi-finals in a grand slam feels great," Khachanov said in his on-court interview after the match.

"Obviously not the way you want to finish the match. I think until a certain point it was very competitive, a very good battle. Sebastian beat one of my friends, Daniil [Medvedev], in three sets and won in five sets against [Hubert] Hurkacz. He is playing great tennis."

Data Slam: Khachanov serves up a treat

Although clearly aided by Korda's struggles later in the contest, Khachanov was impressive on his serve throughout, only being broken once when serving for the first set.

He was able to win 80 per cent (40 of 50) of points on his first serve.

ACES/DOUBLE FAULTS

Khachanov – 12/0

Korda – 4/2

WINNERS/UNFORCED ERRORS

Khachanov – 27/18

Korda – 18/39

BREAK POINTS WON

Khachanov – 4/10

Korda – 1/3

The ascension of Houston Rockets centrepiece Jalen Green continued on Monday as he scored a career-high 42 points in a 119-114 home win against the Minnesota Timberwolves.

Green, 20, was the second overall pick in the 2021 NBA Draft, and he is living up to the hype as one of the game's most electrifying young scorers.

Against the Timberwolves, Green shot 15-of-25 from the field and six-of-12 from long range for his 42 points, four rebounds, four assists with a steal and a block.

The performance came only two games after he tied his career-high 41 points against the Charlotte Hornets on Wednesday, and he is now averaging a team-high 21.7 points per contest with 4.2 rebounds and 3.6 assists.

He was not the only young Rockets prospect to show why he is viewed as the future of the franchise, as center Alperen Sengun put together another complete performance in what has been the best month of his career.

Also in his second season after being drafted by the Rockets in 2021, Sengun had 21 points on eight-of-12 shooting while adding seven rebounds and seven assists. It is his playmaking that is the most notable aspect of his growth.

After averaging 2.6 assists per game as a rookie, and no more than 2.8 during the months of October, November and December, he has put together figures of 18.2 points, 9.9 rebounds and 5.7 assists during his 11 games since the new year began, including a streak of seven consecutive performances with at least six assists.

Despite the win, the Rockets still own the worst record in the NBA at 11-36, and Houston fans will be desperate to add future number one draft pick Victor Wembenyama to their promising young core.

Bucks become fourth team to reach 150 this season

The Milwaukee Bucks had their biggest offensive explosion of the season as they erupted in a 150-130 demolition of the Detroit Pistons.

Despite the Pistons putting up 130 points of their own and the final score appearing competitive, the reality is they were never a chance as the Bucks opened up a 40-12 lead just eight minutes into the game.

Led by two-time MVP Giannis Antetokounmpo's 29 points (eight-of-15 shooting), 12 rebounds and four assists, the Bucks tied for the league's second-highest score this season, trailing only the Sacramento Kings' 153-121 victory over the Brooklyn Nets in November.

Bulls make it three wins in a row

The Chicago Bulls tied their longest winning streak of the season as they defeated the Atlanta Hawks 111-100 for their third in a row.

In a clash between two teams on the Eastern Conference playoff bubble it was DeMar DeRozan and Nikola Vucevic rising to the occasion on an inefficient night for the recently red-hot Zach LaVine.

DeRozan scored a game-high 26 points on 11-of-21 shooting, adding six assists and three steals, while Vucevic grabbed a game-high 17 rebounds while also chipping in 14 points and seven assists.

The Bulls are now 22-24, one game behind the Hawks (24-24) in the East's eighth seed.

Elena Rybakina is through to the semi-final of the Australian Open after a convincing 6-2 6-4 victory against Jelena Ostapenko on Tuesday.

Rybakina, 25, became the first man or woman from Kazakhstan to win a grand slam when she lifted the Wimbledon trophy in 2022, and she is now two matches away from securing her second.

Against Latvia's Ostapenko, Rybakina had a clear power advantage, illustrated by her 11 aces while conceding only one.

She secured a break in the first game of the match, and quickly grabbed a second to race through the first set in 33 minutes. 

It was Ostapenko who snagged the early break in the second set, but she was unable to consolidate it, failing to hold serve in each of her next two chances to allow Rybakina to claw back in front.

Ostapenko will rue some wasteful play as she finished with more break point opportunities than her victorious opponent, but was only able to convert one of her eight chances.

Rybakina will meet the winner between Jessica Pegula and Victoria Azarenka in the semi-final.

Data Slam: Rybakina adds a new string to her bow

With 29 aces so far, Rybakina leads all women at this year's Australian Open in the category. That figure is a testament to her overall serving improvement, as well as what is now her deepest run down under, with more aces this tournament than her past three Australian Open campaigns combined.

ACES/DOUBLE FAULTS

Rybakina – 11/3

Ostapenko – 1/1

WINNERS/UNFORCED ERRORS

Rybakina – 24/21

Ostapenko – 19/22

BREAK POINTS WON

Rybakina – 4/6

Ostapenko – 1/8

The Los Angeles Lakers have made a notable move in their quest to earn a playoff spot by acquiring former lottery pick Rui Hachimura from the Washington Wizards on Monday.

The Lakers sent reserve guard Kendrick Nunn and three second-round picks to Washington in exchange for Hachimura – the ninth overall choice of the 2019 draft – who will be a restricted free agent this offseason after failing to reach an agreement on a contract extension with the Wizards in October.

According to ESPN, the Wizards will receive the Chicago Bulls’ 2023 second-round pick and the Lakers' 2029 second rounder, as well a the less favourable of Washington and the Lakers' 2028 second-round selections.

Hachimura is averaging 13 points and 4.3 rebounds over 30 games this season, and matched a career-high with 30 points in his final appearance with the Wizards, a win over Orlando on Saturday.

The 24-year-old forward is a career 35.6 percent three-point shooter who will be expected to provide a perimeter presence and defense to a veteran Lakers team that entered Monday's play 12th in the Western Conference, but they sit only two games back of the sixth-place Los Angeles Clippers in a tightly bunched race.

"We are excited to welcome Rui and his family to the Los Angeles Lakers," team vice president of basketball operations and general manager Rob Pelinka said in a statement. "Adding both size and depth to the wing position has been a goal, and the chance to accomplish that by acquiring a player with Rui’s two-way skills and upside was one that doesn’t present itself often."

The Lakers were 14-21 and near the bottom of the West standings on December 29, but have won eight of 12 since and could soon be getting back eight-time All-Star Anthony Davis from a foot injury that has sidelined him since mid-December.

Nunn signed a two-year, $10.25million contract with the Lakers in August 2021 after averaging 15 points per game with the Miami Heat over his first two NBA seasons. The 27-year-old missed all of last season with a knee injury, however, and has averaged just 13.5 minutes in 39 games thus far in 2022-23.

"Kendrick has shown the ability to be a solid perimeter threat who can provide instant offence as a reserve." Wizards president Tommy Sheppard said in a statement. "He has proven to be a valuable contributor during his young career, most notably as a key role player helping Miami make a run to the (2020) Finals."

Buffalo Bills receiver Stefon Diggs defended his actions on Twitter after his cantankerous display towards quarterback Josh Allen in the final minutes of Sunday's 27-10 elimination loss to the Cincinnati Bengals.

Diggs led both teams with a game-high nine targets, but they resulted in only four catches for 35 yards – his second-lowest yardage in a game this season.

The Allen-Diggs combination is viewed as one of the league's best as Diggs finished fifth in the NFL with 1,429 receiving yards, while his 11 receiving touchdowns tied for the third-most.

Despite how well he has been fed by his quarterback this season – also enjoying the fifth-most targets (154) – Diggs was animated and demonstrative on the sideline as the Bills' season slipped away.

When asked how he felt about Diggs' actions in the heat of battle, Allen was forgiving but said sometimes the opposition defense can dictate the action.

"Guys are competitive, we don't want to lose," he said. "It's not fun losing, and it's not fun losing that way.

"It's all understood. At the end of the day, we've got to be there for each other and continue to keep pushing forward.

"I feel like sometimes there weren't that many opportunities, and again, defenses can game-plan and try to take away your number one receiver, that's just a fact of it. Those guys on the other side of the ball get paid, too.

"It's just about continuing to find a way to get [Diggs] the ball."

He added: "I've got a lot more to learn, a lot more to grow from, and I've got a long way to go."

Hours after Allen's media availability on Monday, Diggs sent out a series of tweets defending his behaviour.

"Want me to be okay with losing? Nah," he wrote. "Want me to be okay with our level of play when it's not up to the standard? Nah.

"It's easy to criticise my reaction more than the result."

Allen will be 27 by the time the 2023 season begins, and he will enter the first year of his six-year, $258million contract extension.

Meanwhile, the 29-year-old Diggs will not begin his four-year, $96m extension until the 2024 season, meaning they are both tied to the franchise until at least 2027 unless one is cut or traded.

Josh Allen confirmed he will not undergo offseason surgery on his troublesome elbow as he reflected on the Buffalo Bills' season after crashing out of the playoffs against the Cincinnati Bengals on Sunday.

Allen suffered his elbow injury in the Bills' Week 9 loss to the New York Jets in early November, and despite trying to tough his way through it, it clearly affected his play.

The month of November was easily his worst of the season, throwing only four touchdowns with five interceptions over four games while also sporting a passer rating of 75.9 – far below the 98.8 figure he either reached or eclipsed in September, October, December and January.

Although his stats rebounded in the lead-up to and during the playoffs, Allen still appeared to be struggling with his elbow on certain throws, and he could only lead the Bills to one touchdown in the 27-10 elimination loss at home to the Bengals.

Speaking to the media on Monday, Allen acknowledged the pain in his elbow messed with his throwing mechanics but said the rehabilitation plan is simple.

"Rest and recovery is going to be really good for it," he said. "I mean, there was a period, obviously, right after, for a few weeks, where it was pretty bothersome – but again, it didn't affect me all that much.

"I just felt like maybe I was trying to throw it a little differently mechanically, had to change a few things and got away a little bit from how I'm used to throwing the ball. That's just a by-product of that.

"I think, really, two weeks ago is when I felt like I got back to mechanically what I like. Being the rotational thrower, it's very elbow prevalent, and maybe I got a little bit to more of a linear-type deal because I just couldn't really use all that much force and flicking it out there, but, again, just adapting."

When asked about what will stick with him from the 2022 season, Allen said he was proud of how his team came together during a string of traumatic events – including a deadly blizzard in Buffalo and the cardiac arrest of safety Damar Hamlin.

"The adversity that this team [has] overcome," he said. "There's a lot of stuff that happened to a football team that I don't know if it's ever happened before. 

"Just battling through that with the guys in this locker room and us trusting each other. Obviously, we want to win, make no mistake about it. But I'm proud of how this team was able to fight through some of the stuff that we went through."

That sentiment was echoed by defensive leader Von Miller, who said: "It's an honour to be a Buffalo Bill. I've never been on a team that handled as much adversity in a season."