Ludvig Aberg emphasised the importance of staying "disciplined and patient" after he took the sole lead of the US Open on Friday.

Aberg heads into the weekend with a one-shot advantage after carding a one-under 69, backing up an impressive 66 in his first round to leave him five under par at the top of the standings.

It leaves Aberg in a great position to become the second US Open debutant to win the tournament and the first since Francis Ouimet in 1913.

To achieve that, though, Aberg says he must remain calm, telling Sky Sports: "It's hard, but it's not supposed to be easy.

"It's what we expect coming into a US Open, even though it's my first one.

"I've had a lot of good discussions with my caddie Joe about course management and about trying to stay disciplined and patient.

"It's not easy, but I feel like we've done a great job of that so far."

Patrick Cantlay and Rory McIlroy held the joint lead heading into day two after both carding five-under 65s on Thursday.

However, McIlroy shot a disappointing 72 for his second round, while Cantlay's 71 leaves him as one of three players one shot behind Aberg, alongside Bryson DeChambeau and Thomas Detry.

The soaring temperatures have proved testing conditions for players and are expected to continue over the rest of the tournament.

Cantlay is predicting a difficult final two rounds, though he also said he was happy with the position he is in.

"I think this golf course is going to play very challenging over the weekend, especially with the forecast that we have," Cantlay told reporters.

"So I think being smart and being patient, it's inevitable there's going to be some mistakes made, but that's just part of playing a US Open."

Rory McIlroy remains in contention at the US Open despite carding a two-over 72 in his second round at Pinehurst No.2, where Bryson DeChambeau is on the charge.

McIlroy, the 2011 champion, was among the early starters on Friday and bogeyed two of his first six holes after starting on the 10th tee.

However, he steadied the ship on the back nine to finish the day at three under for the tournament, two shots behind his fellow overnight leader Patrick Cantlay, who is among the later starters.

The leaderboard might have looked rosier for McIlroy had he not bogeyed his last hole of the day, the par-three ninth, having found the bunker.

DeChambeau continued to make good ground as his one-under 69 improved him to four under for the tournament. The American had a typically eventful round by mixing four bogeys with five birdies, the last of which saw him finish with a flourish on the 18th.

Ludvig Alberg is also at four under and was, like Cantlay, preparing to start his second round just as McIlroy and DeChambeau reached the conclusion of theirs.

Belgian Thomas Detry was making a splash in round two. He had reached five under through 13 holes, putting him level with Cantlay going into the closing stages of his round.

PGA Championship winner Xander Schauffele is at one under after posting a 69, but it was a tougher day for world number one Scottie Sheffler, who is five over par after carding a four-over 74 on day two.

Scheffler now faces an anxious wait to see if he will make the cut.

Patrick Cantlay set the early pace on day one of the US Open at Pinehurst, with Rory McIlroy later matching his score to share the lead.

McIlroy, part of the headline group with world number one, Scottie Scheffler and Xander Schauffele, had the chance to equal the lead on the 17th but missed his birdie shot by inches.

However, he held his nerve on the final hole to finish a bogey-free five-under 65, giving him a share of the lead with Cantlay.

A tough round for Scheffler saw him card a one-over 71, while Schauffele missed his birdie putt on the final hole to finish on level par.

Five-time major winner Brooks Koepka briefly led after 10 holes, but a sloppy finish saw him finish on level par, with Collin Morikawa matching his score shortly after.

Meanwhile, Tiger Woods made a promising start with a birdie on the 10th, his first hole of the round, but he struggled as he went on, finishing with a four-over 74.

Bryson DeChambeau was among the later starters in North Carolina.

Davis Riley and Nick Hardy earned their first PGA Tour wins on Sunday by securing the Zurich Classic of New Orleans with a tournament-record score of 30 under par.

The American duo shot scores of 64 and 63 in their four-ball rounds on Thursday and Saturday, and they also excelled in the foursomes format, posting 66 on Friday before closing with a seven-under 65.

With five birdies from their last eight holes, Hardy and Riley broke two strokes clear of the chasing pack, eclipsing the scoring record of 29 under set by the team of Patrick Cantlay and Xander Schauffele just last year.

For their efforts, Hardy and Riley earned $1.24million each, along with a massive jump into the top 40 of the FedExCup rankings.

Two strokes behind in outright second place was the Canadian team of Adam Hadwin with Nick Taylor, who posted a final-round 63 to tie the tournament's foursomes scoring record, which Cantlay and Schauffele set on Friday.

Wyndham Clark and Beau Hossler enjoyed an outright third finish at 27 under, while defending champions Cantlay and Schauffele were joined in fourth at 26 under by Matthew NeSmith with Taylor Moore.

The team of Keith Mitchell with Im Sung-jae came into Sunday's play at 25 under and finished the same way, blowing a golden opportunity to threaten the leaders, while the impressive young South Korean duo of Tim Kim and Kim Si-woo banked a top-10 finish at 23 under.

Wyndham Clark and Beau Hossler retained their lead at the Zurich Classic of New Orleans with a third-round 62 in Saturday's four-ball.

The duo carded a 10-under 62 to be 26-under overall heading into the final day, leading by one stroke from Keith Mitchell and Sung-jae Im at TPC Louisiana.

The three teams are tied for third at 23-under overall, in Vincent Norrman and Matthias Schwab, Matthew NeSmith and Taylor Moore, and Nick Hardy and Davis Riley.

Clark and Hossler produced a bogey-free round with 10 birdies, including three in a row to start the back nine.

Clark birdied the 18th to ensure their solo lead from Mitchell and Im, who also went without a bogey for the round with the South Korean providing six front-nine birdies.

Matt and Alex Fitzpatrick also managed a third-round 62 to be 21-under overall, tied for seventh alongside two other teams.

Reigning champions Xander Schauffele and Patrick Cantlay could only manage a six-under 66 on Saturday to slip down the leaderboard at 20-under overall.

Charley Hoffman, playing alongside Nick Watney, provided a highlight with a hole-in-one on the par-three ninth hole. The duo are back at 17-under overall.

The stroke play tournament concludes with the alternate shot format on Sunday.

After a disappointing opening round, the defending champion team of Patrick Cantlay and Xander Schauffele shot Friday's best round to climb into the top five at the Zurich Classic of New Orleans.

The highest-ranked duo in the field, world number four Cantlay and world number five Schauffele made the foursomes format look easy, posting a nine-under 63 in the alternate shot style. It set a new tournament record for a foursomes round.

It comes after they finished Thursday's first round outside of the cut-line as they could only muster a five-under 67 in the easier four-ball format, but they were three strokes better than every other team on their second trip around TPC Louisiana.

They are two strokes off the outright leading pair of Wyndham Clark with Beau Hossler, following their 61 with a solid 67 to be the only team at 16 under heading into the weekend.

One stroke behind in a tie for second are the teams of Im Sung-jae with Keith Mitchell and Doc Redman with Sam Ryder, while the Cantlay/Schauffele team are in a five-way tie for fourth.

The highly-rated team of Sam Burns and Billy Horschel are at 11 under in a tie for 20th, where they are joined by strong South Korean duo Tom Kim with Kim Si-woo, and also the Fitzpatrick brothers – Matt and Alex.

One of the favourites coming into the tournament, the team of Max Homa and Collin Morikawa missed the cut at eight under.

Matt Fitzpatrick and his brother Alex shot a four-ball round of 62 on Thursday at the Zurich Classic of New Orleans to sit one stroke off the lead through 18 holes in the unique format.

The only duos event on the PGA Tour calendar, the pairs of Wyndham Clark with Beau Hossler and Sean O'Hair with Brandon Matthews took the first-round lead with 11-under 61s as each member played every hole, with only the best score from each hole counting towards their team's score.

Hossler contributed seven of his team's 11 birdies, while Matthews had five birdies and an eagle for his pairing.

The Fitzpatrick brothers poured in five birdies each to earn a spot in the five-way tie for second place, joined by the teams of Keith Mitchell with Im Sung-jae, David Lipski with Aaron Rai, Henrik Norlander with Luke List, and Noh Seung-yul with Michael Kim.

Last year's runners-up Sam Burns and Billy Horschel are three strokes off the pace in a logjam at eight under, while one of the strongest teams in the field featuring world number 13 Collin Morikawa and world number seven Max Homa are tied for 43rd at six under.

Reigning champions Xander Schauffele and Patrick Cantlay were disappointing, two strokes outside of the cut-line at five under, but they will hope to claw their way back into things when the format switches to alternate shot foursomes on Friday.

Matt Fitzpatrick secured a sentimental victory at the RBC Heritage on Sunday after surviving a three-hole playoff against Jordan Spieth.

Fitzpatrick, the reigning U.S. Open champion, had come into the final round with the outright lead after a spectacular career-best round of 63 on Saturday, but he found himself two strokes behind through 13 holes.

It was Spieth who had raced out to the lead with five birdies and eight pars through his 13 holes as part of the final group with Fitzpatrick, turning a two-stroke deficit into a two-stroke lead as Fitzpatrick was only one under in his round up to that point.

But Spieth would bogey the 14th, allowing Fitzpatrick to grab a share of the lead at 17 under with a birdie on 16, after both birdied the 15th.

Fitzpatrick blew a golden opportunity to take the outright lead with a poor birdie putt on 17, and then Spieth converted a tricky up-and-down on 18 to force a playoff.

It is a playoff that will live long in the memory of Spieth, as he had his potential tournament-winning birdie putt catch the lip on the first extra hole, and then again narrowly missed a birdie putt on the second playoff hole to keep Fitzpatrick alive.

Fitzpatrick eventually made the American pay, nearly holing out from the fairway on their third attempt at the 18th hole, tapping in for birdie as Spieth sailed his approach long and could not pull off a miracle.

It is Fitzpatrick's first non-major PGA Tour victory, and one that will carry some extra weight on a personal level after revealing this week that his family have made annual trips to Harbour Town Golf Links to watch this tournament since he was six years old.

Patrick Cantlay finished outright third at 16 under, with fellow top-10 ranked talent Xander Schauffele in outright fourth at 15 under.

Reigning U.S. Open champion Matt Fitzpatrick moved into a one-shot lead from Patrick Cantlay at the RBC Heritage with a bogey-free eight-under 63.

Fitzpatrick surged up the leaderboard on the third day at Harbour Town Golf Links with a hole-out eagle from 149 yards out on the par-four third hole.

The 28-year-old Englishman's 63 was a new career-low score, highlighted by four birdies along with the eagle on his front nine 30.

Fitzpatrick leads at 14 under from Cantlay (13 under) and Jordan Spieth (12 under) who carded five-under 66s on the third day.

Cantlay enjoyed a bogey-free round of five under, managing three birdies in four holes on the back nine, while Spieth bogeyed on the par-three 17th, seeing him drop two strokes off the lead.

Halfway leader Jimmy Walker slipped down the leaderboard with a one-over 72, meaning he is tied for fourth at 11 under with Taylor Moore, Mark Hubbard, Tommy Fleetwood and Scottie Scheffler.

Last week's Masters champion Jon Rahm was unable to build on his second-day 64, despite starting with three straight birdies.

Rahm's run stalled with a double bogey on the fourth, eventually carding a two-under 69 to be back at eight-under overall.

Keegan Bradley had the second-best round of the day behind Fitzpatrick, moving to nine-under overall and joint 16th with a bogey-free seven-under 64.

Last week's Masters champion Jon Rahm shook off his poor opening round and rebounded with Friday's best score, while Jimmy Walker opened up a three-stroke lead at the RBC Heritage.

Rahm had a bit of a hangover following his second major victory, beginning his week at Harbour Town Golf Links with a one-over 72, before showing the field how it was done with a seven-under 64 on his second trip around the course.

He birdied holes two, three, four and five to kick-start a bogey-free round with seven birdies overall, jumping from the wrong side of the cut line to a tie for 18th at six under.

Meanwhile, at the top of the leaderboard it was Jimmy Walker who raced clear of the pack, posting his second 65 in a row to head into the weekend at 12 under.

Walker, 44, is a six-time winner on the PGA Tour, but his last victory came at the 2016 PGA Championship, and he came into this event with only four made cuts from 12 starts this season.

He has his work cut out for him to hold off a star-studded chasing pack, with world number two Scottie Scheffler joined by major champion Justin Rose and world number six Xander Schauffele at nine under.

Fellow top-10 talents Patrick Cantlay and Viktor Hovland are one stroke further back at eight under, where they are joined by English duo Aaron Rai and Tommy Fleetwood in a tie for fifth.

Jordan Spieth is tied for 10th at seven under with a group that includes Rickie Fowler and former RBC Heritage champion Matt Kuchar, and Rahm is joined at six under by reigning U.S. Open champion Matt Fitzpatrick.

Young South Korean phenom Tim Kim missed the cut by one stroke, while Max Homa had a week to forget, finishing at three over to miss the cut by five strokes.

Jon Rahm was the major casualty from the WGC Match Play on Friday as Scottie Scheffler, Rory McIlroy and Patrick Cantlay all advanced with perfect records.

The Spanish second seed was dumped out after losing 5 and 4 to 2021 WGC Match Play winner Billy Horschel in their final Group 2 match at the Austin Country Club in Texas.

Horschel went 1-up with a par on the second hole and never relinquished the lead, with Rahm failing to register a birdie throughout the day's play.

The 36-year-old American pulled away with birdies on the 10th and 11th holes followed by a 21-foot birdie putt on the 14th to clinch a spot in the round of 16 against Cameron Young.

Horschel progressed in a tight group with a 2-0-1 record ahead of Rickie Fowler (2-1-0), Rahm (1-2-0) and Keith Mitchell (0-2-1).

Top seed and reigning champion Scheffler advanced after beating Tom Kim 3 and 2 to round out a 3-0-0 group stage record.

Kim came out strong with birdies on the first two holes to go 2-up, but Scheffler rallied back immediately winning three of the next four holes.

Third seed McIlroy topped Group 3 unblemished after beating Keegan Bradley 3 and 2, while fourth seed Cantlay beat Brian Harman 2 and 1 to top Group 4 with a 3-0-0 record.

Kurt Kitayama won a three-way sudden death playoff over Tony Finau and Adrian Meronk to progress atop Group 10.

Canadian Mackenzie Hughes produced an upset to advance via Group 12 from Taylor Montgomery who he beat 6 and 4. Jordan Spieth, who beat Hughes on Thursday, missed out after losing to Shane Lowry 2 and 1.

J.J. Spaun also pulled off a surprise by topping Group 11 with a 3-0-0 record, downing Min Woo Lee 2 and 1 to seal his progress.

Max Homa, Xander Schauffele, Andrew Putnam, Matt Kuchar, Sam Burns, Lucas Herbert, J.T. Poston, Jason Day and Young also all progressed into Saturday's last 16 knockout stage.

The Floridian fairways and greens of Sawgrass are in a splendid state ahead of the Players Championship, but the same can hardly be said for professional golf as a whole.

Riven by conflict and division, the turbulence of the last year is reflected by who is absent this week. The defending champion, Cameron Smith, for starters.

A defector to LIV Golf, drawn in by a staggering signing-on fee of reportedly $100million, Smith traded his parking spot and right to practise at Sawgrass, his local course, for the Saudi bounty.

It would be difficult for anybody to turn down such riches, so rather than sit in judgement of the 29-year-old Australian it is a timely moment to look at where the sport finds itself, with the PGA Tour battling to retain talent.

Notorious LIV? Mo money, mo problems

Is the LIV tour really the black-hearted enemy to golf that some would portray it as? It obviously would say not, and its tour chiefs, headed by CEO Greg Norman, have mounted passionate defences of the splinter series that has put up huge sums to draw in many of the world's elite.

Golf can be a short-lived career for stars at the highest level, so young players may see an opportunity to make quick money and instantly set themselves up for life.

Those at the opposite end, who have made phenomenal money already but are perhaps seeing diminishing returns, have been handed opportunities to cash in on their big profiles for a late-career pay day. Look to the likes of Phil Mickelson, Sergio Garcia, Ian Poulter and Lee Westwood in this regard.

Would those in the middle be quite so tempted? The PGA Tour would hope they might show loyalty after being well served, so it will have particularly hurt to see the likes of Brooks Koepka, Dustin Johnson, Patrick Reed and Bryson DeChambeau make the leap across.

Norman has argued LIV is "unlocking potential", claiming in a News Nation interview in January that golf "has been stuck in a box for 53 years". 

Australian Norman also took criticism for declaring that "we've all made mistakes", when he defended the Saudi regime last year, responding to the killing of journalist Jamal Khashoggi.

The fact LIV is bankrolled by the Saudi Public Investment Fund (PIF) has sparked suggestions golf is being manipulated for sportswashing purposes, and those claims are not going away.

How has the PGA Tour responded?

When the weapon in a fight is money, you have to find more of it to keep the troops happy.

The PGA Tour has hiked up prize funds at eight key events this season. Among these is The Players, where it has leapt from $20m last year to a $25m purse this week.

That announcement came last June. As recently as last week, though, the PGA Tour confirmed it would introduce designated events with limited fields and no cuts from 2024, in what it hopes is a compelling move to fend off more LIV defections.

Tour commissioner Jay Monahan described the eight 'no-cut' events for 2024 as "can't-miss tournaments", with players able to earn places through the regular tour season.

LIV Golf reacted to the announcement by stating on Twitter: "Imitation is the greatest form of flattery. Congratulations PGA Tour. Welcome to the future."

The PGA Tour insists there are striking differences, with the opportunity for players to earn spots through year-round competition, rather than being guaranteed a place week-in, week-out.

Tiger Woods has spoken of this being a "very turbulent" period for golf, but he remains committed to the PGA Tour, with the 47-year-old American said to have turned down an offer of around $700m to $800m.

Rory McIlroy is firmly opposed to LIV taking over, too, and the PGA Tour has kept a host of household names – the likes of Jon Rahm, Scottie Scheffler, Xander Schauffele and Patrick Cantlay – while others have slipped away.

Looking at the no-cut events, McIlroy has said major sponsors "want a guarantee that the stars are there", and blue-chip investment will be essential if the PGA Tour is to keep raising prize pots.

"If that's what needs to happen, then that's what happens," the Northern Irishman added.

What next? Will others jump ship?

The LIV tour has expanded to become a 14-event season, running from last month's opening tournament in Mayakoba, Mexico, through to the November finale in Jeddah, Saudi Arabia.

Eight of those events will take place in the United States, including the March 17-20 Tucson tournament.

It has a US TV deal now, with CW Network. The major sport networks have not picked it up yet, but this marks a significant stepping stone.

By next year, it may even be awarding ranking points, although that is far from certain to come to pass.

There will be LIV players allowed to compete at the Masters next month, and they are set to be able to compete at all four majors, while remaining exiled from the PGA Tour and Europe's DP World Tour, and quite possibly the Ryder Cup.

Chile's Mito Pereira and Colombian Sebastian Munoz have moved across from the PGA Tour this year, and the question is whether any more notable names will also be tempted.

Cantlay, who was rumoured to be considering a switch to LIV last season, said the no-cut PGA Tour step would "make the Tour stronger and put an emphasis on those weeks".

What about this week? It's a mess, isn't it?

Smith's absence is a tough one for the Players Championship to swallow. Organisers have been unable to herald the champion's return, and Smith would sooner be involved than on the outside, but he made his choice and this is the consequence.

In fact, last year's top three are all LIV-ing it up these days, with Anirban Lahiri and Paul Casey consequently not involved this week either.

Smith lives just down the road, and he told Golf.com he would "definitely be watching on TV", hinting he could even turn up to watch.

"I grew up my whole childhood watching the event and yeah I'd love to get out there," Smith said.

"I don't know how it would kind of be received, but getting out there and watching, walking around in the crowd, might be pretty funny."

In a serious, big-bucks business, there would be a sense of pantomime to that happening, and it seems unlikely Smith will roll up. But then this all seemed unlikely two years ago, and here we are.

Kurt Kitayama made sure his 50th start on the PGA Tour would be one he never forgets after winning the Arnold Palmer Invitational by one stroke on Sunday with a final score of nine under.

Kitayama, 30, is in his seventh season after making his debut in the 2016-17 campaign, and he finally earned his first PGA Tour victory to go with two wins on the European Tour and one Asian Tour triumph.

It was far from smooth sailing, with a catastrophic triple-bogey on the ninth hole ruining Kitayama's bright start to his final trip around Bay Hill, taking him from a two-stroke lead at 11 under, back to one behind the leaders.

But he kept his composure, rattling off seven pars in a row to begin his back nine, before what ended up being the tournament-winning birdie on the tricky par-three 17th.

Rory McIlroy and Harris English both had birdie putts on the 18th to reach nine under, but could not convert, meaning Kitayama just needed a par on the last to secure the win.

He left himself with a long two-putt for the title, and he almost made it in one, coming up an inch short to set up a tap-in par.

Illustrating how difficult the course played over the weekend, Kitayama was nine under through two rounds, and finished with back-to-back 72s as the field failed to chase him down.

McIlroy briefly tasted the outright lead after Kitayama's triple and Jordan Spieth's late collapse, but the Northern Irishman's seven birdies were balanced out by five bogeys, including two in a row on the 14th and 15th while he was out in front.

He finished tied for second at eight under with English, who was the only player in the field to finish with no bogeys on Saturday or Sunday.

Spieth found himself at 10 under through 13, but imploded with three bogeys over his next four to tie for fourth at seven under with Patrick Cantlay, Scottie Scheffler and Tyrell Hatton.

After a five-over outing on Saturday, Davis Riley bounced back with a 66 for the round of the day, catapulting him into an unlikely top-10 finish at six under.

Jon Rahm's brilliant recent run came to a dramatic halt in windy conditions as he slipped down the leaderboard on day two at the Arnold Palmer Invitational on Friday, with Kurt Kitayama taking a two-stroke lead.

Rahm, who has claimed five wins from his past nine starts worldwide, had led the event after an opening-day seven-under 65 but carded a four-over round of 76 on day two to be six strokes off the pace at three-under overall.

The Spaniard's round saw him come back to earth, falling away dramatically late with three bogeys and a double bogey in his final five holes at the Bay Hill Club and Lodge in Florida.

Rahm's struggles opened the door for Kitayama, who had been joint second after the first day. Kitayama backed that up with a four-under 68 with five birdies and one bogey to be nine-under overall.

Kitayama has led three events this season after 36 holes and is yet to convert any into victories.

Over Kitayama's shoulder is three-time major winner Jordan Spieth who found his putting groove to card a three-under-par 69, sitting two shots off the lead at seven-under overall. Spieth might have been closer if not for a bogey on the 18th after a poor drive.

Xander Schauffele and Corey Conners are tied at six under, with Davis Riley, Patrick Cantlay, Matt Fitzpatrick and Justin Thomas behind them at five under. Conners carded the day's best round with a six-under 66.

Last month's Honda Classic winner Chris Kirk was tied for second after the opening day but also dropped away with a day-two 75 that included two double bogeys.

Among those to miss the projected cut, with play suspended with two players left on the course, were Collin Morikawa, Tom Hoge and Hideki Matsuyama.

Jon Rahm lived up to his billing as the hottest talent in professional golf after starting his week at the Arnold Palmer Invitational with a seven-under 65 on Thursday.

Rahm, the world number one, boasts five wins from his past nine starts worldwide and has not finished an event outside the top 10 since finding himself in a tie for 15th in August's Tour Championship.

Coming off a victory in his most recent outing at the Genesis Invitational, Rahm is looking to secure another of the PGA Tour's new elevated events, with the increased prize pool drawing 44 of the world's top-50 players to the famous Bay Hill course.

He certainly made a promising start in Florida, heading into day two with a two-shot lead at the top of the leader board.

Rahm began his day with three consecutive birdies and finished with another two on 17 and 18 having carded an eagle on the par-five 16th.

His sole bogey came on hole eight, failing to recover a par after a wayward tee shot.

Another competitor coming off a win in his most recent start, last week's Honda Classic champion Chris Kirk is tied for second at five under with Cameron Young and Kurt Kitayama.

Not a single player finished their round bogey-free, but Kitayama and Max Homa (two under) made it through 17 holes before their first blemishes came on the 18th.

The group tied for fifth at four under includes some of the game's biggest stars, with world number two Scottie Scheffler joined by three-time major winner Jordan Spieth, Patrick Cantlay, Xander Schauffele and resurgent fan favourite Rickie Fowler.