Overnight leader Justin Rose was faltering through nine holes of his second round at the Masters on Friday.

The Englishman made light of tricky scoring conditions to shoot a stunning seven-under-par 65 in round one, during which he picked up nine strokes from the eighth hole having played the first seven at two over.

But after starting bogey-birdie on Friday, Rose dropped three more shots before the turn and was at four under for the tournament midway through his second round.

Bernd Wiesberger was only one shot back having gone through 14 holes at five under for the day, while Hideki Matsuyama and Brian Harman were the same score but yet to begin round two.

Jordan Spieth was only two behind through four holes of his second round, with Marc Leishman among a cluster of players also at -2.

Tommy Fleetwood, Tony Finau and Cameron Smith were all playing the round at three under as the leaderboard bunched up early on Friday, while Justin Thomas was back at level par overall.

The likes of Jon Rahm (E), Dustin Johnson (+2) and Rory McIlroy (+4) are scheduled to tee off later on Friday.

Mike Elliott will replace James Allison as technical director in a reshuffle for Formula One constructors' champions Mercedes.

Allison has led the Silver Arrows' technical operations since early in 2017, but will step back from day-to-day management to become chief technical officer on July 1.

Elliott, who started his career with McLaren 21 years ago and also worked for Renault, will be promoted to replace Allison.

He joined Mercedes as head of aerodynamics in 2012 before being appointed as the team's technology director four years ago and will switch jobs again in another reshuffle.

Mercedes said in a statement on Friday: "The transition to the new organisation will take place across the coming months as we continue the 2021 championship battle on track and prepare for the significant challenge of the 2022 technical and sporting regulations in our development programmes back at base."

Elliott said: "It has been a great pleasure and privilege to work for James earlier in my career at Renault, and for the past four years at Mercedes. His track record in the sport speaks for itself, and he has been a fantastic team-mate and leader for me during that time.

"They are big shoes to fill and I am delighted that we will be able to call on his expertise in his new role as CTO. On a personal level, it is an amazing opportunity to become Technical Director of a team like Mercedes, and I must thank Toto [Wolff] and our company for trusting me to make the step up to this new role.

"It is an incredible privilege to be part of this team and I know that the leadership strength at every level through the company will be vital to our future success.

"I can't wait to get started and to tackle the many exciting technical challenges ahead of us in the next months and years."

The Silver Arrows have won seven consecutive constructors' titles and seven-time world champion Lewis Hamilton won the season-opening Bahrain Grand Prix last month.

The Western Force snatched a dramatic 16-15 victory over the Rebels on Friday as the home side failed to capitalise on their dominance at AAMI Park.

Despite enjoying 65 per cent of the possession and more than twice as many passes and carries, the Rebels were thwarted by their own lack of cutting edge against a rigid rearguard.

Force then made them pay with the only try of the contest in the 78th minute, Tim Anstee touching down after a rolling maul and Domingo Miotti adding the extras.

Matt Toomua's penalty had given the Rebels a 15-6 lead midway through the second half but a further kick that struck the upright proved a costly miss in an error-strewn contest.

Miotti also missed a kick prior to the visitors' critical try, before a last-gasp wayward drop goal attempt from Reece Hodge brought the contest to a frustrating end for the Rebels.

It was a 10th successive Super Rugby meeting between the sides decided by a single-digit margin.

And the Rebels are now just a point ahead in the Super Rugby AU standings as the battle for semi-final places hots up.

Paul George enjoyed leading the Los Angeles Clippers to a 113-103 win over the Phoenix Suns, who he again accused of "chirping" in a heated encounter.

The Clippers and the Suns are each in contention in the West, but Phoenix's hopes of reeling in leaders the Utah Jazz were hit by Thursday's defeat.

This was the teams' second meeting of the season and the Clippers' second win, with George influential in both.

The seven-time All-Star had a season-high 39 points back in January, after he which he claimed the game had seen "a lot of chirping and people just living in the past".

And the same phrase came up again on Thursday after 33 points on 12-for-19 shooting.

It was a third straight Clippers win against a team in the playoff places in the West, with George also scoring 39 against the Portland Trail Blazers, but the in-form forward was especially motivated for this game.

"We focused on us," George said. "I don't know what that chirp is about. We focused on us.

"I don't care what they're doing over there. I don't care who they are or what they're doing.

"I'm locked in. They can do the chirping, I let them have it tonight. I just stayed in my zone, stayed in my place, I don't know.

"I don't care what they're doing. We're focused on us over here. We're focused on getting better. Tonight was a fun matchup, and we appreciate the challenge."

Suns star Devin Booker had both a flagrant foul and a technical foul on Thursday, while Patrick Beverley (one flagrant) and Marcus Morris Sr (two technicals) were both ejected for the Clippers.

Booker and George each had technicals in the first game – one of only two for the latter all season.

Clippers coach Ty Lue said: "I don't have any concerns. I love it.

"When you are competing at a high level against one of the best teams in the league, do what you've go to do to win. And I thought our guys were physical. We competed, we fought.

"There are going to be games like this where it is going to be chippy. They are fighting for something, we are fighting for something, so it is going to happen and I am okay with it."

Mike Trout continued his prolific start to the new Major League Baseball season with a homer in a third straight game as the Los Angeles Angels won 7-5 against the Toronto Blue Jays on Thursday.

With the game tied at 3-3 at the top of the fifth, Trout creamed Blue Jays right-hander Ross Stripling a projected 444 feet for a solo home run.

"That one definitely had some flight attendants working on it," Angels manager Joe Maddon joked.

In the first of their four-game series in Dunedin, Florida, Trout starred with 3-for-5 but fell a triple short of the cycle in the victory.

On Trout's form, Maddon added: "There's no surprise element to any of this. He's not doing anything new, it's actually a lot of old stuff."

Yermin Mercedes endeared himself to the Chicago White Sox fans in their home opener with a monster 485-foot home run.

The home run in their 6-0 victory over the Kansas City Royals was Mercedes' second of the season and goes down as the third-longest hit by a White Sox player in Guaranteed Rate Field history.

Mets walk-off controversy, Jose lift off for Astros

The New York Mets' 3-2 walk-off victory over the Miami Marlins ended in controversy and the winners admitted they got lucky.

After Jeff McNeil tied the game at 2-2 in the ninth with a home run, the Mets had bases loaded as Michael Conforto stepped up.

After two strikes, a pitch grazed Conforto's elbow pad and home-plate umpire Ron Kulpa initially appeared set to call a third strike before changing mid-motion to say the pitch hit the batter, earning the Mets the run they needed.

"Not the way I wanted to win the ballgame," Conforto said post-game. "I wanted to go up there and drive the ball somewhere.

"From my point of view, it was a slider. I felt it was coming back toward me and I turned. There may have been a little lift of my elbow just out of habit, out of reaction, and it barely skimmed the edge of my elbow guard."

Marlins manager Don Mattingly was left frustrated that they could not review the call.

"You'd think with all the replay we do that you could say, 'That ball's a strike'," he said.

The Houston Astros improved to a 6-1 record with a 6-2 triumph over the struggling Oakland Athletics, with Jose Altuve delivering a home run in their home opener after a long wait.

The Minnesota Twins won 10-2 against the Seattle Mariners, while the Boston Red Sox won 7-3 on the road to the Baltimore Orioles.

Fails for the A's

The A's slumped to a 1-7 record with their loss to the Astros, where it took them until the ninth inning to get on the board.

Grichuk grasps Trout hit

Trout's day may have been a little bit better for the Angels if not for Randal Grichuk's sensational diving catch in center in the ninth.

Thursday's results

New York Mets 3-2 Miami Marlins
Chicago Cubs 4-2 Pittsburgh Pirates
Boston Red Sox 7-3 Baltimore Orioles
Colorado Rockies 7-3 Arizona Diamondbacks
Chicago White Sox 6-0 Kansas City Royals
Minnesota Twins 10-2 Seattle Mariners
St Louis Cardinals 3-1 Milwaukee Brewers
Los Angeles Angels 7-5 Toronto Blue Jays
Houston Astros 6-2 Oakland Athletics

Rays against Yankees

Last year's American League champions the Tampa Bay Rays have had a slow start at 2-4 and they take on the New York Yankees (3-3).

The Milwaukee Bucks lost again without Giannis Antetokounmpo on Thursday, but coach Mike Budenholzer believes the two-time MVP's absence can benefit his team.

The Bucks completed a six-game road trip against the Dallas Mavericks, going down 116-101 at American Airlines Center.

Antetokounmpo featured in the first three of those games, yet he missed the next three after scoring a season-high 47 points against the Portland Trail Blazers.

The 'Greek Freak' leads Milwaukee in points (28.8), assists (6.2) and rebounds (11.4) per game, while also contributing 1.3 blocks and 1.1 steals.

Knee soreness is impacting Antetokounmpo's bid for a third straight MVP triumph, but it is also hindering the Bucks. The team are 29-16 when their superstar plays but just 3-3 without him.

Milwaukee were not helped against the Mavs by poor shooting displays from Khris Middleton and Jrue Holiday, their second and third men.

Middleton was an alarming 6-for-27 from the field for 14 points – 22.2 per cent, his second-worst outing of the year – as Holiday, who signed a lucrative contract extension last week, was 6-for-16 for 13 points.

Budenholzer acknowledged both players must perform better as he suggested the Bucks needed to adapt to playing when Antetokounmpo is not on the floor.

The 26-year-old forward played just 30.4 minutes per game last season when Milwaukee led the East, but he has been relied on for 34.0 minutes in 2020-21.

"The guys are getting more opportunities," Budenholzer said. "There's a little bit more of a load on both Jrue and Khris. I think they're learning to take that.

"We didn't make enough shots tonight; Khris, Jrue didn't make enough shots. We're getting better. We'll learn from these things.

"Playing without Giannis, he can't play 48 minutes, so I think there's going to be good stretches for us when Giannis doesn't play and we'll grow from these experiences playing without him."

While the Bucks struggled without their big name, Dallas got 27 points, nine assists and nine rebounds from Luka Doncic.

But the Slovenian also earned his 12th technical foul of the season. That tally has steadily increased over his NBA career – five in his rookie year, nine last year – and he is now just four shy of a one-game suspension.

"He's aware," coach Rick Carlisle said. "My level of concern is there. But look, he's an emotional competitor. It all comes from the right place.

"He's smart, he knows where the count is. If he's going to get his 16th, he'll get it in a situation where it's time for a day of rest anyway. I'm not really that worried about it."

It was a big win for the Mavs, who returned to winning ways after a shock defeat to the Houston Rockets on Wednesday ended a run of five successive victories since Doncic returned from a short lay-off due to illness.

"This was a playoff-type game [against the Bucks], playoff-calibre in terms of intensity and competitiveness and the talent on the floor," Carlisle said. "We did a much, much better job, top to bottom, than we did last night."

Dallas also got 26 points, 17 rebounds and two blocks out of Kristaps Porzingis. Eleven of his points came in the fourth quarter on 4-for-4 shooting after failing to attempt a single field goal in the final 12 minutes against the Rockets.

Porzingis said of his relationship with Doncic: "We're trying to play together and help each other. We want to win – at the end, we all want to win here.

"We have to keep playing, keep playing together, playing well and helping each other."

At the onset of the season, the Atlanta Hawks were a trendy pick to be a team that could fight their way into the playoffs and be tough to eliminate in a postseason series. 

Sure, they finished mere percentage points ahead of the Cleveland Cavaliers for the worst record in the Eastern Conference last season, but with the returning core of All-Star Trae Young, John Collins and De'Andre Hunter, plus the offseason additions of Clint Capela, Danilo Gallinari, Bogdan Bogdanovic and Rajon Rondo, there was plenty of reason to believe the Hawks could capture their first playoff berth since 2017 in a top-heavy yet mostly mediocre Eastern Conference.

Injuries to Hunter, Gallinari and Bogdanovic, however, stunted Atlanta's growth, and the team sputtered over the season's first two months. And with another blown fourth-quarter lead in a loss to Southeast Division rivals the Miami Heat on February 28, the Hawks' record dropped to 14-20 as they slid into 11th place in the East, prompting team president Travis Schlenk to fire coach Lloyd Pierce less than halfway into his third season at the helm.

Schlenk believed the season could be salvaged and needed a new voice, promoting assistant Nate McMillan to interim coach.

The Hawks have responded.

They've since compiled a 13-5 record – behind only the Brooklyn Nets and Philadelphia 76ers among East clubs – to move into a virtual tie for the Southeast lead with the Charlotte Hornets, and into fifth place in the conference. They have also navigated around a recent injury to Collins, going 4-1 since he sprained his left ankle.

There are several reasons for Atlanta's surge, but it's no coincidence the turnaround under McMillan has coincided with the return of Bogdanovic.

Lured away from the Sacramento Kings on a four-year, $72million deal, Bogdanovic looked like a bust early, averaging 9.9 points on 38.5 per cent shooting and 36.2 per cent on three-point attempts in his first nine games, before missing the next 25 through the end of February with a sprained knee.

After working out the rust over a few games upon returning, Bogdanovic has found his shot and is thriving.

Since March 24, his 66.4 eFG (effective field goal) percentage ranks third in the NBA among the 99 players with a minimum of 75 attempts, while his 53.3 per cent shooting from beyond the arc ranks fifth among the 92 shooters with at least 35 three-point tries.

He was inserted into the starting lineup on March 26, and with Bogdanovic and Young together on the court, the Hawks have been lethal, averaging 117.1 points per 100 possessions, 49.4 per cent shooting and 45.7 per cent on three-pointers. Without them, they are averaging 102.7 points per 100 possessions, 41.7 per cent on field goals and 33.3 per cent on threes.

Bogdanovic has been especially deadly from the wing since McMillan tabbed him as a starter. Since March 26, his 21 three-pointers from the wing is just one fewer than Miami's Duncan Robinson for the league lead, while his 46.7 per cent shooting from the wing ranks fourth among the 47 players with a minimum of 25 attempts.

Young's scoring has dropped since Bogdanovic cracked the starting five (20.9 ppg since March 26 after previously averaging 25.8 ppg), but he's been distributing the ball to his teammates a little more (10.4 assists per game since March 26 after previously averaging 9.4 apg).

Since March 26, Young has assisted on 20 made baskets by Bogdanovic – the most by a guard to a single teammate – and 16 by Capela.

The Young-to-Capela show is nothing new, however, as Young has fed Capela on 99 made baskets on the season – fourth-most by any player to a teammate. Atop that list is Young’s 121 assists to Collins, and the Hawks are hopeful the two can add to this number as early as next week with Collins back practising.

Capela has had more opportunities inside with Collins sidelined, but really, he's been a beast in the paint all season.

The league's top offensive rebounder at 4.8 per game, Capela is third in the NBA in second-chance scoring at 4.6 points per game (minimum 20 games played).

His production in the interior has also increased with Bogdanovic starting, as he has been averaging 6.7 dunks and layups per game since March 26 – second in the league behind Zion Williamson's average of 10.6 per game. Prior to March 26, Capela averaged 5.5 dunks and layups per game.

Like Bogdanovic, Gallinari also got off to a sluggish start to the season and also dealt with an ailment, missing 12 games with multiple foot injuries. But also, similarly to Bogdanovic, he's found his stroke.

After averaging 11.2 points on 38.6 per cent shooting from the floor and 37.8 per cent from beyond the arc in his first 23 games, Gallinari is averaging 16.3 points on 47.6 per cent shooting – including 43.5 per cent on threes in his last 15. He's been one of the league's best at connecting on three-pointers from the wing since March 1, draining 47.1 per cent – the fourth-highest rate in the league among the 77 players with 50 or more attempts.

Gallinari hasn't been the only contributor off the bench for the Hawks over the last week.

At the trade deadline, the Hawks shipped Rondo to the Los Angeles Clippers for 16-year veteran Lou Williams to provide another scorer off the bench. The three-time Sixth Man of the Year Award winner is averaging 13.2 points and 3.4 assists in four games, rejuvenating the reserves since making his Hawks debut on April 1.

With Williams on board, Atlanta's bench ranks fifth in scoring (43.6 ppg), ninth in shooting (46.8 per cent) and second in three-point shooting (53.8 per cent) since the start of April. Prior to April, the bench ranked 27th in scoring (31.7 ppg), 30th in shooting (40.3 per cent) and 16th in three-point shooting (35.9 per cent).

While the Hawks have become healthier – despite the recent injury to Collins – and are getting more production from their bench, they are also showing a proficiency at closing out games. Instead of wilting late, they are now flourishing.

The loss to the Heat on February 28 marked the 11th setback of the season for Atlanta in a game in which they led in the fourth quarter, and only league-worst Minnesota had more through the end of February with 12. Since the beginning of March, however, the Hawks are 13-2 when holding a fourth-quarter lead, and only the Denver Nuggets (15), Brooklyn Nets (14) and Phoenix Suns (14) have more such victories.

The Hawks' recent fourth-quarter figures are startling. Their PPG average has been 27.7 since March 1 after being 27.1 previously, representing a small improvement. Yet in that same period their opponents have averaged just 24.3 fourth-quarter points compared to 29.0 in the first 34 games of the season, Atlanta's three-point percentage has switched from 34.8 per cent before March to 41.9 per cent during the games since, and their PPG differential has switched up from being minus 1.9 prior to the upturn to plus 3.4 in their subsequent outings.

That means in terms of fourth-quarter progression they have gone from being 15th in PPG in games before March to eighth since, from 29th to second in opposition PPG, from 19th to second in three-point percentage, and from 29th to first place in PPG/difference.

Atlanta have played their way into a playoff position, and now the trick is staying there. One advantage the Hawks have going for them, though, is they have a relatively easy path the rest of the way.

Through the end of February when the team fired Pierce, Atlanta had the eighth-toughest strength of schedule (.512 opponents' winning percentage). The Hawks then made their push since the beginning of March with a schedule that was the eighth easiest (.478), and now they have the sixth-easiest schedule through the rest of the season (.480).

The Milwaukee Bucks dropped their second game without Giannis Antetokounmpo going down 116-101 to the Dallas Mavericks in the NBA on Thursday night.

Mavs center Kristaps Porzingis dominated with 26 points including four three-pointers, along with 17 rebounds, with Slovenian guard Luka Doncic top scoring with 27 points.

The Bucks were without two-time MVP Giannis due to knee soreness, missing his third straight game as Milwaukee slipped to 32-19.

Milwaukee produced a 14-0 run in the third with Donte DiVincenzo scoring 22 points and Bobby Portis pulling down 14 rebounds but Dallas dominated the last quarter to take out the win.

The Los Angeles Lakers dropped another game without LeBron James and Anthony Davis as Jimmy Butler dazzled for the Miami Heat in a 110-104 victory.

Butler scored 28 points, with seven rebounds and five assists for Miami who trailed at the main break.

The Lakers have lost six of their past 10 matches with a 32-20 record and are fifth in the West.

Clippers blanket Suns, Jazz blow away Blazers

In a crucial clash in the West, the Los Angeles Clippers finished strong to edge the in-form Phoenix Suns 113-103 led by Paul George and Kawhi Leonard.

George had 33 points including seven three-pointers, seven rebounds and three assists, while Leonard scored 27 points, with five rebounds and five assists.

New Clippers recruit Rajon Rondo added 15 points and nine assists off the bench too, as they improved to 35-18, with the Suns 36-15 after their eight-game winning run ended.

Donovan Mitchell scored 37 points as the ladder leading Utah Jazz blew away the Portland Trail Blazers with a 40-19 third quarter to win 122-103.

Jazz center Rudy Gobert had 20 rebounds along with his 18 points while Damian Lillard scored 23 points and had five rebounds and six assists for the Blazers.

The Chicago Bulls were too good for the undermanned Toronto Raptors 122-113 with Deadline Day additions Nikola Vucevic and Daniel Theis starring.

New Heat recruit hurt

Heat guard Victor Oladipo played 25 minutes and scored 18 points in their win over the Lakers but he went off late with an apparent left knee injury which will have Miami sweating on their new recruit.

Kawhi dunks on Suns

The commentators were left staggered when Leonard drove into the key and produced a massive right-hand dunk in the third of the Clippers win over the Suns.

Thursday's results

Chicago Bulls 122-113 Toronto Raptors
Miami Heat 110-104 Los Angeles Lakers
Cleveland Cavaliers 129-102 Oklahoma City Thunder
Dallas Mavericks 116-101 Milwaukee Bucks
Los Angeles Clippers 113-103 Phoenix Suns
Detroit Pistons 113-101 Sacramento Kings
Utah Jazz 122-103 Portland Trail Blazers

76ers in The Big Easy

Joel Embiid's Philadelphia 76ers (35-16) go to Zion Williamson's New Orleans Pelicans (22-29) looking to re-claim top spot in the East.

Top seed Ashleigh Barty moved into the quarter-finals with a three-set win over Shelby Rogers while Petra Kvitova and Garbine Muguruza exited in the Round of 16 of the Volvo Car Open in Charleston.

World number one Barty was pushed all the way by 52nd ranked Rogers, with both players trading breaks in the final set, before the Australian prevailed 7-6 (7-3) 4-6 6-4.

The victory extends Barty's winning streak to eight matches having won last week's Miami Open.

Barty won 82 per cent of first serve points and sent down 10 aces to get the edge on the American, who saved eight of 13 break points throughout the match.

"The conditions are difficult. It's pretty quick," Barty said in her on-court interview post-game.

"Shelby was able to control the centre of court for a lot of the match. It was about trying to get control when I could. She's an exceptional player, it's always a fight no matter what surface or where we are in the world. It's always one that I enjoy."

Barty will play Spaniard 71st ranked Paula Badosa in the quarter-finals after she beat Caty McNally 6-3 6-3.

Third seed Kvitova was the major casualty on Thursday, losing 6-4 6-1 to Montenegrin Danka Kovinic.

The first set was tightly fought before Kovinic pulled away as Kvitova's errors mounted.

"We both have pretty big serves and she's very good hitting from the baseline," Kovinic said post-game. "Today it was the key that I tried, and did it really well, to take her pace of the ball and use her energy."

Sixth seed Garbine Muguruza also bowed out injured, despite leading 6-0 2-2 against 11th seed Yulia Putintseva.

Muguruza laboured for a few games after a medical time-out before retiring with a left leg injury. Putintseva will next face Kovinic.

Seeds Ons Jabeur, Veronika Kudermetova and Cori Gauff also progressed to the last eight, while Sloane Stephens won in straight sets against Ajla Tomljanovic.

Meanwhile at the Copa Colsanitas second round in Bogota, seventh seed Tereza Martincova was knocked out, going down 6-3 6-3 to Colombian teenager Maria Osorio Serrano.

On the outdoor clay courts, fifth Tamara Zidansek moved into the quarter-finals with a 6-2 6-3 win over Giulia Gatto-Monticone, while Harmony Tan beat Daniela Seguel.

Rory McIlroy's quest for a career Grand Slam may have to wait another year after an underwhelming opening day at the Masters, but he says he was encouraged by the way he finished his round.

The 31-year-old Northern Irishman made six bogeys on the first day at Augusta, finishing with a four-over 76, leaving him well off the pace set by Justin Rose with a seven-under 65.

McIlroy's best ever finish at the Masters was fourth in 2015, having won the 2012 and 2014 US PGA Championship, 2011 U.S. Open and 2014 Open Championship.

"My goal is to play well and at least give myself a chance," McIlroy told a news conference after his opening round.

"Honestly I'm quite encouraged with how I hit it on the way in. I hit some loose shots out there, but after hitting the  six iron in the water on 13, I hit some really good shots coming in, so I'm encouraged by that.

"It was just one of those days where I wasn't very efficient with my scoring.

"You're sort of fighting against momentum, but if you make a birdie then you can sort of get going, and [it was] just one of those days.

"But I hung in there, hit some good shots coming in, could have made a couple more birdies, but it's not as if anyone is going really low out there.

"Hopefully feel a little more comfortable tomorrow, go out there and shoot a good one."

There was a bizarre moment for McIlroy when his approach on the seventh hit an onlooker, which was later revealed to be his father, Gerry.

"It was a perfect shot; it was dead straight but I think he was okay," McIlroy said.

"He didn't limp away. He walked away pretty swiftly, so that was all right."

He added: "I knew it was my dad when I was aiming at him."

Justin Rose "reset" after a tough start at the Masters before firing a stunning seven-under 65 to take the first-round lead on Thursday.

The Englishman produced his best ever round at Augusta, equalling the second largest first-round lead in Masters history with his four-stoke advantage.

Such a position looked unlikely for Rose when he bogeyed the seventh hole to be at two over.

But his response was incredible with an eagle at eight and birdie at nine, before six more birdies followed on the back nine.

Rose said the eagle at the eighth hole was what he needed to settle into the tournament.

"It maybe settled me down if I'm honest. I kind of knew two over through seven is not the end of the world, but also knew you're going in the wrong direction," he told a news conference.

"You can't win the golf tournament today. Even with a 65 you can't win it today. You can only probably lose it today, obviously.

"And I was very aware being a couple over through seven that things weren't – I didn't hit the panic button yet, but I reset just prior to that and thought if I can get myself back around even par, you know, that would be a good day's work.

"So obviously the eagle, boom, straight back in there, and I guess almost just piggybacking with a birdie straightaway at number nine, suddenly I turned in one under, and I could feel like I could actually leave the front nine behind as a job well done and kind of move to the back nine and try and build a score.

"From that point on I kind of was aware that the lead was only three, and if I played a decent back nine it was basically a very good day's work. And then I just got on a great run and was just trying to stay out of my own way and just try to get it to the clubhouse and keep doing what I was doing."

Rose, the 2013 U.S. Open champion, said his putting was key to his incredible round.

"I putted the ball beautifully and read the greens unbelievably well. If you had said to me walking up the eighth hole, I'd have said no chance, this course is playing a little too tricky for that," he said.

"But it's incredible. It's a good reminder that you just never know what can happen out there, just to stick with it on the golf course."

Rose is four strokes clear of Brian Harman and Hideki Matsuyama.

Giannis Antetokounmpo will miss another match for the Milwaukee Bucks after being ruled out of Thursday's game against the Dallas Mavericks with knee soreness.

The 26-year-old two-time NBA MVP has missed Milwaukee's past two games since scoring 47 points and grabbing 12 rebounds in Friday's win over the Portland Trail Blazers.

In Antetokounmpo's absence, the Bucks suffered a surprise loss to the Golden State Warriors on Tuesday and beat the Sacramento Kings by one point on Saturday.

The Bucks confirmed his absence for Thursday's game an hour ahead of tip-off as they look to improve from 32-18.

Bucks coach Mike Budenholzer said on Tuesday: "He was warming up tonight and just felt it a little bit. Just made the decision that tonight was not a good night, it was a night he should be out."

Antetokounmpo has had an outstanding NBA season for the Bucks, averaging 28.8 points per game with a field goal percentage of 56.5.

He also has 6.2 assists per game and 11.4 rebounds per game this season.

Justin Rose surged into a four-shot lead as Rory McIlroy and Bryson DeChambeau were among the big names to endure first-round struggles at The Masters.

Rose was two over through seven holes in tough scoring conditions, with quicker and firmer Augusta greens proving a much bigger challenge than when Dustin Johnson won the tournament with a record score of 20 under last November.

The Englishman sparked into life with an eagle at the par-five eighth hole and lit up the back nine to card a magnificent seven-under 65, the lowest Masters round of his career, with patrons allowed back in under blue skies.

Rose, eyeing a maiden Masters title, got on a roll with seven birdies in nine holes before finishing with a composed par to retain his four-stroke advantage.

Brian Harman and Hideki Matsuyama shared the early clubhouse lead with impressive three-under opening rounds of 69 before Rose stormed clear.

Defending champion Johnson shot a two-over 74 following a double bogey at the 18th, having made a bogey-birdie start before getting in the red for the first time at 13.

Masters debutant Will Zalatoris, Webb Simpson, Christiaan Bezuidenhout and Patrick Reed will start their second rounds on two under following encouraging starts, while new father Jon Rahm and Xander Schauffele are among a clutch of players at level par.

McIlroy suffered a miserable opening round and is back on four over, facing a battle to make the cut rather than fight it out to complete a career Grand Slam, while U.S. Open champion DeChambeau was four over through 15.

Jordan Spieth was left to rue a triple-bogey after launching a wayward tee shot into the trees at the ninth but was in a share of eighth on one under after chipping in for an eagle at 15, while Justin Thomas was a further stroke back through 15.

Brooks Koepka matched Johnson's 74 just a few weeks after undergoing knee surgery and the previously in-form Lee Westwood is languishing on six over.

Tommy Fleetwood generated a roar from those fortunate enough to be at the 16th to see him make a hole-in-one before he signed for a 74.