Lewis Hamilton conceded that any optimism for the Australian Grand Prix had been quashed after Ferrari again dominated Mercedes in practice in Melbourne.

Seven-time world champion Hamilton was fortunate to edge onto the podium in Bahrain's season opener, with Mercedes' problems with their new W13 design well-documented.

More problems followed for the 37-year-old and his team in Saudi Arabia, where Hamilton fell to his first performance-related Q1 elimination since 2009 and Mercedes failed to make the top five on the grid for the first time since the 2013 Italian Grand Prix.

Mercedes team principal Toto Wolff warned not to expect any "magic fix" for their new W13 car 'porpoising' – bouncing at high speed – and not racing at the optimum height, and the practice sessions at Albert Park have left much to ponder.

Hamilton and team-mate George Russell finished well behind a Ferrari one-two of Carlos Sainz and Charles Leclerc in the first practice, and things did not improve in the second session when Russell was 11th quickest and Hamilton a lowly 13th.

Both Mercedes drivers were again well behind Leclerc, and Hamilton, who finished more than one and a half seconds off the pace, accepted Sunday will be a struggle.

"I feel good, I feel okay. It was just a difficult session," he told Sky Sports. "You go in very optimistic, you make changes, and it doesn't seem to be wanting to improve.

"We made some changes going into FP2; FP1 was better, and FP2 ended up being a bit harder, so it's tricky. I don't think it'll be tricky to find our way back, there's just not a lot we can do. This is the way it is, so we just have to drive with it.

"We're trying to push, trying to catch, and even when you do a decent lap, it's 1.2s down."

Russell, who is fourth in the drivers' championship despite not making the podium in his opening two races, echoed Hamilton's frustrations.

"We're not in the position that we want," Russell said. "There's quite a few midfield cars ahead of us, and we're quite a long way off the pace. We need to work hard tonight and understand the limitations [of the car].

Asked if he was still enjoying driving, Russell added: "Driving is always cool, [but] you enjoy it more when you're on top of the timesheet!

"When you think you've done a good lap and then you look at the timesheet and see that you're down in P11, it's not where we want to be as a team. It's all about results."

Karolina Pliskova believes Ash Barty could return to tennis following her surprise retirement in March, but the Czech acknowledged she could not relate to the decision as she "likes the game too much".

Barty became just the second player to call quits on their playing career when ranked as world number one, after Justine Henin, with a shock announcement last month.

The 25-year-old cited a lack of "physical drive and emotional want" to compete despite claiming her second grand slam title at the Australian Open just two months before.

However, just as Henin did after retiring, former world number one Pliskova has a feeling that Barty, who defeated her in the 2021 Wimbledon final, may also return to the court in future.

"I was shocked because I'm not really on Twitter because I don't want to get too much information for myself," Pliskova told the WTA on Barty's retirement.

"But somebody messaged me and said, 'Oh, did you see the news?' It was 11:00 in the evening in Miami. I was like, 'No, no, did somebody cry again or something?' They said, 'No, no, Ashleigh, she stopped.' I'm like, 'No way, that's not possible. Tell me the reason.' 

"I understand everybody's different. For me, it's not understandable at all because I just like the game so much. But I understand somebody maybe suffers, somebody doesn't like to travel.

"She basically won everything that she wanted to win, I suppose maybe she had no motivation. If you hate this tennis life and it's not what you always wanted to do, I think it's good to stop. 

"But I was surprised and shocked. I thought she was a really good number one for our sport and she was there for a while. Of course now, Iga [Swiatek] is a really good player, but I just thought Ashleigh was a good person and she had good charisma. I'm going to miss her. 

"But you never know. I think maybe she's going to come back. And then she's just going to be 27."

Meanwhile, Pliskova is focusing on her comeback as she continues to recover from a freak gym accident that resulted in a broken arm, which delayed the start of her new campaign by two months.

The 30-year-old, who has reached two major finals, made an encouraging return as she defeated Ukraine's Katarina Zavatska at Charleston Open but fell to Ekaterina Alexandrova on Friday.

"It was tough because people who follow tennis or me, they know I don't really have injuries," she added. "Even if I feel something, I still play. I never skip anything, not even practice or a tournament.

"The only break I had was this Covid break and I don't think that helped me. This injury was a bit more serious because I could not use my arm. I had a cast for a month or two. So it was quite a difficult time.

"I think things are going quite well. I just try to take the positives out of it, that I'm able to play after a couple months. It's been too long for me because with the offseason together, I missed four or five months.

"I know I'm not the player which can have five months at home and then I come in and win a tournament. I need some time to go through the feelings and the matches. I know it's going to take time, but just happy to be back."

McLaren driver Lando Norris believes the struggles of Mercedes and Lewis Hamilton are reassuring for Formula One.

Hamilton squeezed onto the podium in Bahrain in the season opener despite ongoing questions following a series of design changes by his team to comply with new regulations for the 2022 season.

However, he then succumbed to his first performance-related Q1 elimination since 2009 in Saudi Arabia as Mercedes failed to make the top five on the grid for the first time since the 2013 Italian Grand Prix.

Mercedes team principal Toto Wolff has since acknowledged that instant solutions would not be found for their new W13 car 'porpoising' – bouncing at high speed – and not racing at the optimum height.

And Norris believes it is refreshing for the rest of the grid to see the usually dominant Mercedes well behind Ferrari, who hold a 40-point lead over Red Bull in the constructors' championship after two races.

"In a way it is nice to see that Mercedes don't always have success," Norris told The Daily Mail. "It shows that even when you have had that success, you can still get things wrong. It is easy to get things wrong.

"Much as I hate to say it, it is good to see Ferrari up there. And it is reassuring for other teams to know it is still possible. If it were just Mercedes and Red Bull again, it would be so predictable.

"With Lewis you are seeing the challenge of one of the best drivers competing in a car that is not the best. We will see a different side of Lewis, compared to the last decade.

"But I don't think you can say it is all about the car, rather than Lewis' ability. He has still been against very good drivers, such as Fernando [Alonso] in his first year, and then went on to achieve what everyone expected of him.

"I just don't believe in the last few years he has had quite the challenge that he could have had, or maybe that he had against [Nico] Rosberg. Perhaps we will see that against George [Russell, Hamilton's new team-mate].

"I don't think anything takes away the driver he is."

Norris has endured a similarly tough start to his season with McLaren, finishing almost a minute behind winner Max Verstappen in Jeddah, but he feels he made the right choice to join his new team.

"I see a lot of stories saying I have made the wrong decision," he added. "But that is not the case. I am happy. I have all the faith in the world that we can still achieve good things in the next few years and if I had to make the decision again, I would still do what I did.

"There were chances to go to other teams, but I am playing the long game."

The 22-year-old, who is 10th in the drivers' championship, will hope he can kick-start McLaren's 2022 campaign at the Australian Grand Prix in Melbourne on Sunday.

George Russell believes Mercedes have the potential pace to challenge Ferrari and Red Bull for race wins this season, but not at this weekend's Australian Grand Prix.

Russell finished a lowly 11th in Friday's second practice session in Melbourne, adding further anguish to what has been a challenging opening to the 2022 Formula One season.

He and Mercedes team-mate, seven-time world champion Lewis Hamilton, only claimed respective fourth and third place finishes at the season opener in Bahrain after Red Bull had to retire both cars.

Finishes of fifth and 10th for Russell and Hamilton respectively in Saudi Arabia provided a clearer reflection of where the once-dominant Mercedes team is in the 2022 pecking order, amid new regulations.

"We do believe there is a solution and we do believe there's a lot of lap time on the table once we optimise that," Russell said.

"It's more optimism and excitement. We're not here scratching our heads, not understanding why we're off the pace. We absolutely know why we're off the pace and we know what we need to work on to improve that.

"We're a long way behind Ferrari and Red Bull. It's going to take time and we just have to be disciplined and patient because we are so far behind and because of the cost cap, we can't afford just to throw things at it and trial and error at race weekends."

The extra week between the Saudi Arabian and Australian Grands Prix has not rectified the extreme porpoising issues Mercedes cars have experienced at high speeds so far, relative to other teams.

A higher downforce setup would significantly impact the car's speed and performance, meaning a balance must be struck, something rival teams have been quicker in achieving.

Russell, who signed for Mercedes upon the expectation he would be challenging for race wins and ultimately the driver's title, believes the team must be patient.

"We need to trust the process and bring the upgrades when we have total faith and confidence they will do as we expect," he said. "And that will be a number of races before we start seeing that."

Rory McIlroy will hope to build on an encouraging start on day two at The Masters and claimed his first-round one-over 73 was the "worst I could have shot".

The Northern Irishman headed to Augusta National searching to complete the elusive career grand slam for an eighth attempt, and sits six shots behind leader Im Sung-jae after the opening round on Thursday.

Slow starts have often been McIlroy's problems at the majors, but he felt his "negative" approach paid dividends as he opted for a more conservative route around Augusta.

Four-time major winner McIlroy was satisfied with his first outing as he looks for a first major title since the PGA Championship in 2014, and believes his one-over-par round did not do his efforts justice.

"I am encouraged with how I played. I don't really care where I am at on the leaderboard, it doesn't matter," the 32-year-old said.

"I hit the ball well from tee to green in the most part, I am pleased with that [although] I want to work on my putting.

"I think I hit 12 fairways and 14 greens and just didn't really get a lot out of the round. I hit a lot of greens in the middle and made a lot of easy pars.

"I had a putt at 14 to go two-under for the round with a par five to play but I three-putted that and halted any momentum I had. I think that's the worst I could have shot, I felt I played really well.

"The course is in incredible shape for the amount of rain we have had, so I am looking forward to dry conditions over the next three days."

McIlroy, who is tied for 31st place after his three bogeys cancelled out two birdies, is set to get back in action at 15:45 BST on Friday with playing partners Brooks Koepka and Matthew Fitzpatrick.

While he had no difficulty in parring the first hole on the opening day, McIlroy believes the nerves of that initial tee shot at The Masters never fade away.

"The hour or two leading up to that first tee shot there are nerves and anxiety," he added. "Once you get the first tee shot out of the way it is business as usual.

"I usually envision, 'what's the worst place I could hit it off the tee?' I then think, 'okay, I could probably make four from there'. That is how I settle myself down."

MVP favorite Nikola Jokic became the first player in NBA history with 2,000 points, 1,000 rebounds and 500 assists in a season in the Denver Nuggets' 122-109 home win against the Memphis Grizzlies on Thursday, 

He had 35 points, 16 rebounds, six assists and five steals in his game-winning performance.

For the season, Jokic is eighth in the league in points per game (27.0), second in rebounds per game (13.7) and eighth in assists (7.9).

Out of players who average at least 20 minutes per appearance, Jokic is 12th in usage (30.9), which measures the percentage of his team's possessions that end with him shooting or turning the ball over while he is on the court.

Of the league's top 100 players in usage rate, none are shooting better than Jokic's 66.1 True Shooting percentage, which weights three-point shots, two-point shots and free throws to produce a single number.

Only 12 players have a better True Shooting percentage than Jokic, and of those players, Montrezl Harrell has the highest usage, at a role-player number of 19.8.

The Denver big man is also the only non-guard in the top 15 in assist percentage, coming in at sixth (38.8) and trailing only Luka Doncic, Trae Young, Chris Paul, James Harden and Dejounte Murray.

As Nuggets teammate Bones Hyland put it: "Dude is really great at basketball."

Hyland was not the only Nuggets representative to shower Jokic with praise when talking with the media after their win, with coach Michael Malone highlighting that he believes the MVP race has been decided.

"The MVP isn't even a competition," he said.

"There's other great players. I'm not saying they're not great players. But what Nikola Jokic has done this year – with this team – everything we've had to go through, is just incredible.

"He was good last year, and he's even better this year."

Even Grizzlies coach Taylor Jenkins was at a loss for how to deal with the threat he poses.

"We threw a lot at him,'' he said. "He's the MVP for a reason. He's nearly impossible to guard. 

"He's going to beat you from inside, outside, playmaking. He played at a really high level tonight.''

Meanwhile, Jokic said he was content to let his play do the talking, saying "if that's enough [to win MVP], it's enough… if not, you cannot control that.''

Tiger Woods looked in good health in his return to The Masters, but it is Im Sung-jae who stands alone atop the leaderboard after the first round at Augusta National.

In Woods' first competitive round since The Masters in 2020, the legend finished with three birdies – on the sixth, 13th and 16th – as well as two bogeys, on the eighth and 14th holes.

South Korea's Im produced the round of the day, birdieing the first three holes on his way to five birdies, two bogeys and an eagle on 13 to finish at five under.

Smith, who recently won The Players Championship, finished one shot off the lead and outright second at four under, despite bookending his round with double-bogeys on both the first and the 18th, with eight birdies in between.

World number one Scottie Scheffler nearly went bogey-free, but a slip-up on 18 saw him finish two shots off the pace at three under. 

It was a similar story for Dustin Johnson, who birdied four of his first 10 holes before dropping a shot on the 17th to finish tied with Scheffler, as well as Chile's Joaquin Niemann and England's Danny Willett in a tie for third.

Patrick Cantlay and Canadian Corey Conners highlight the small group tied for seventh at two under, while Tony Finau, Webb Simpson and former runner-up Will Zalatoris are one further back, tied with Woods for 10th.

A decorated group finished at even par, including Hideki Matsuyama and Sergio Garcia, as well as Victor Hovland, who had five birdies, three bogeys and a double-bogey.

A pair of big names shot 73 for a one over finish in Collin Morikawa and Rory McIlroy, while plenty of notable stars were a further shot back.

Bookmakers' favourite Jon Rahm was uncharacteristically off his game, with four bogeys and two birdies to finish at two over along with Max Homa, Xander Schauffele, Jordan Spieth and Adam Scott.

Brooks Koepka was two under through nine holes, but three consecutive bogeys on 11, 12 and 13 drained his confidence, eventually finishing three over.

Bryson DeChambeau, Louis Oosthuizen and Justin Thomas had a day to forget at four over.

The Miami Heat clinched the first seed in the Eastern Conference, as the Milwaukee Bucks defeated the Boston Celtics 127-121 on Thursday.

Giannis Antetokounmpo and Jrue Holiday each scored 29 points in the win, while the former also added 11 rebounds and five assists. Khris Middleton was close to a triple-double with 22 points on nine-of-18 shooting, along with eight rebounds and nine assists.

On the second night of a back-to-back after their win in Chicago, the Celtics rested Jayson Tatum and Al Horford, and only just lost on the road against a fellow contender in the East.

Marcus Smart shot seven-of-12 from beyond the arc and was the Celtics' leading scorer with a season-high 29 points. Meanwhile, Jaylen Brown came up with a triple-double of 22 points, a career-high 11 assists, along with 10 rebounds.

With the win, however, the Bucks moved past the Celtics into second spot in the East, effectively clinching home court for Miami in the playoffs.

Raps edge past short-handed Sixers

Pascal Siakam put up a triple-double in the Toronto Raptors' 119-114 win over the Philadelphia 76ers.

Matisse Thybulle missed the game, raising speculation over whether he is vaccinated against coronavirus, with unvaccinated foreign nationals prohibited from entering Canada.

Siakam's consequent ability to get into the paint counteracted his one-of-seven from the perimeter, putting up 37 points on 14-of-28 shooting, along with 12 assists and 11 rebounds.

Warriors win builds pre-playoff confidence

The Golden State Warriors continued to build momentum without the injured Stephen Curry, securing a 128-112 victory at home to the Los Angeles Lakers.

Having already been eliminated from play-in contention, the Lakers were without LeBron James, Anthony Davis, Carmelo Anthony and Russell Westbrook. Talen Horton-Tucker scored a career-high 40 points on 15-of-28 shooting.

It was the Dubs' third consecutive win and their last game in the Bay Area before the playoffs, heading on the road to San Antonio and New Orleans to close out the regular season.

Taylor Fritz saw his way past Alejandro Tabilo to advance to the quarter-finals at the US Men's Clay Court Championships, winning 6-1 6-4 on Thursday.

Fresh off his maiden ATP 1000 title at Indian Wells and fourth-round run in Miami, the American world number 13 needed just 62 minutes to win in straight sets, in his first clay court match for the season.

Fritz's serve was not particularly secure, though, with the unseeded Tabilo converting on only one of six break point attempts. Fritz was more efficient and assertive when opportunities presented on the other hand, taking two of three break point chances on Tabilo's serve while winning 12 out of 19 points returning on his second serve.

Despite the Chilean world number 100 fighting back to 4-4 from 3-0 down in the second set, Fritz steadied to close out the match.

"I felt like tonight was going to be a really tough match, given he's done really well on clay," Fritz said post-match. "It was my first match [on clay]. I'm pretty happy with how I played. I can't complain, I got out of that pretty solid."

Fritz will now face another Chilean, fifth seed and defending champion Cristian Garin, who came back from a set down to defeat Jordan Thompson 3-6 6-3 6-3.

Entering the Houston event on a five-match losing streak, Garin has come from behind in back-to-back matches to win.

Sixth seed Frances Tiafoe also went the distance on Thursday, earning a 5-7 7-5 7-6 (7-4) win over Uruguayan Pablo Cuevas.

With neither garnering break point chances in the third set, Tiafoe finally created breathing room by winning four straight points at 2-2 in the deciding tie-break, before closing out the match.

It sets up an all-American quarter-final with John Isner, who defeated Steve Johnson 6-7 (1-7) 7-6 (7-4) 6-3 in Thursday's final game.

St Louis Cardinals ace pitcher Adam Wainwright was nearly flawless as he led his side to a 9-0 Opening Day shutout of the visiting Pittsburgh Pirates.

Wainwright pitched six scoreless innings, giving up five hits and no walks before being relieved to begin the seventh inning, finishing with 81 pitches.

It was far from a stressful game for the home side, scoring in the first inning through a Tyler O'Neill RBI single, before O'Neill smashed a three-run bomb over the wall an inning later to lead 4-0 through two frames.

The middle innings moved quickly as neither team was able to string baserunners together, but the Cardinals gave the home fans some more to cheer for in the eighth inning with home runs to Tommy Edman and Nolan Arenado.

J.T. Brubaker took the loss for the Pirates, finishing with four hits, three walks and four earned runs in three innings of work.

Super Suzuki wins debut

The Chicago Cubs' high-profile international signing, Seiya Suzuki, collected a hit and two walks from four at-bats in a 5-4 home win against the Milwaukee Brewers.

Kyle Hendricks pitched well for the home side, conceding one earned run to go with seven strikeouts before being withdrawn in the sixth inning.

The big moment for Suzuki came as he led-off the fifth inning, sending a base hit to shallow left field for his first career knock after signing a five-year, $85million deal out of the Japanese league this off-season.

The Bobby Witt Jr era begins in Kansas City

While Suzuki is favourite to take home the NL MVP, the Kansas City Royals' Bobby Witt Jr is the favourite in the AL, and delivered on debut in his side's 3-1 home win against the Cleveland Guardians.

After three outs from his first three at-bats, Witt delivered when it mattered, finding the gap with a RBI double in the eighth inning to give his side a 2-1 lead, and then came around and scored himself to finish it off.

Ohtani makes history in Angels loss    

It was not a great Opening Day for the Los Angeles Angels, but reigning AL MVP Shohei Ohtani made history once again.

In the Angels' 3-1 loss to the Houston Astros, Ohtani became the first player to start on the pitchers' mound and lead-off the batting, throwing and facing Los Angeles' first pitch of the season.

He finished with nine strikeouts and one earned run before being withdrawn in the fifth inning after 80 pitches, while going zero-for-four from his plate appearances.

Thursday's results

Atlanta Braves 3-6 Cincinnati Reds

St Louis Cardinals 9-0 Pittsburgh Pirates

Kansas City Royals 3-1 Cleveland Guardians

Chicago Cubs 5-4 Milwaukee Brewers

New York Mets 5-1 Washington Nationals

Arizona Diamondbacks 4-2 San Diego Padres

Los Angeles Angels 1-3 Houston Astros

Red Sox at Yankees

The two historic rivals will kick off their seasons at Yankee Stadium on Friday in the first scheduled game of the day.

Im Sung-Jae was delighted to be alone atop the leaderboard after round one of his second appearance at The Masters.

The South Korean had an incredible debut at Augusta National, finishing tied with Cameron Smith for second place in 2020.

Im finished Thursday's round five under after birdieing his first three holes of the day, also collecting a birdie on the seventh to card a four under front-nine.

After consecutive bogeys to start the back nine, he recovered in style, nabbing an eagle on the par-five 13th, and another birdie on 15.

Speaking to the media after his first round, the former runner-up highlighted how much confidence his previous success has given him.

"It was great to have a great finish at my Masters debut, and because of that experience I feel comfortable when I come to Augusta," he said. "I feel like I can play well here every time.

"My preparation stays the same for each tournament, but I felt like my driving game was not as up to par as what it used to be, so I worked on my driving, and today the key to a successful round was having good tee shots.

"The key to the good round today was just getting off to a hot start. I birdied the first three holes, and that's what got me on to a good rhythm."

World number five and the tournament's top seed, Aryna Sabalenka, was upset by American Amanda Anisimova 3-6 6-4 6-3 in the third round at the Charleston Open.

Sabalenka's serve was the key to her early success, connecting on 73 per cent of her first serves, and winning 15 of the 19 points in that situation (79 per cent).

When Sabalenka's first serve percentage fell to 48 in the second set, Anisimova found her footing, breaking twice in the frame, before pouncing on the Belarusian's lacklustre second serve in the deciding set, winning seven of nine opportunities to earn the break and the win.

Sixth seed Jessica Pegula was also bounced in surprising fashion, losing 6-4 3-6 6-4 to unseeded compatriot Coco Vandeweghe.

In a razor-close contest, it came down to who took their chances, as Vandeweghe saved seven of the 10 break points she faced, while Pegula could only save one of five.

World number 10 Ons Jabeur had no problem navigating the challenge of Emma Navarro, winning 6-3 6-2 as she broke her opponent's serve on six occasions.

Canadian seventh seed Leylah Hernandez also fell victim to an unseeded upset, going down 3-6 6-3 6-4 against Poland's Magda Linette.

In a meeting between two top-10 seeds, Belinda Bencic got the better of Madison Keys to edge it 6-4 6-4.

Second seed Paula Badosa had to come from a set down to eventually get the better of Claire Liu 3-6 7-6 (10-8) 6-1.

In the late session, French 12th seed Alize Cornet went down in a close tussle against Ukraine's Anhelina Kalinina 7-6 (7-5) 7-5, while Jabeur won her second match of the day, beating Irina Begu 6-3 6-2.

Meanwhile, in Bogota at the Copa Colsanitas, top seed Camila Osorio dispatched Turkish opponent Ipek Oz 6-3 7-6 (7-4) to move on to the quarter-final where she will meet Elina Avanesyan.

Australia's Cameron Smith had mixed feelings after his first round at The Masters on Thursday.

Smith finished the day with a four-under 68, which was enough for outright second on the leaderboard, trailing leader Sungjae Im by one stroke.

It was an action-packed day for the most famous mullet on tour, tallying a round-high eight birdies, but shooting himself in the foot with double-bogeys on the first and last hole.

Speaking to the media after stepping off the 18th green, Smith said he is not going to dwell on his painful ending to his round.

"I’ve moved on already," he said.

"The less you guys bring it up, the quicker I’ll forget about it. I’m done with it. I think the stuff in between was really nice, and [I'll] just take the positives out of it.

"I feel like I played some really solid golf today, and to be four under is a little bit disappointing. 

"But given the condition of the golf course, and the condition with the wind and stuff like that, if you had given me four under at the start of the day, I would have taken it.”

Touching on his double-bogeys, Smith said they were more of a case of misreads rather than mis-hits.

"To be honest, those couple of double-bogeys really didn’t have too bad a shots in them," he said. "It’s not like I was scratching it out of the trees. 

"I got my second shot into a reasonable spot, and just misjudged the wind on both wedges."

In a spectacular run of form, which includes a win at The Players Championship this year, Smith credits his ascension to increased professionalism off the course.

"I feel as though the last five or six years I’ve been really inconsistent with my training, and probably the last eight months or so I’ve been just really consistent," he said.

"I’ve made lots of good changes, I think, to my body, and I just feel like I’m able to walk off the golf course and not be wrecked.

"Most of the time I feel pretty fresh walking off the golf course, which is a feeling I don’t think I had for a long time, and it’s I think why my game has probably got a lot more consistent through four rounds.

“I lost a little bit of weight – my body moves a little bit quicker when I don’t have so much around my belly. 

"I think I’ve definitely started to see my driver going probably a little bit further, definitely the swing speed up a little bit.

"I just need to – now I think the next step is just being able to control that and hit more fairways."