Players on the LIV Golf roster will be allowed to compete in the DP World Tour's Scottish Open after their bans for featuring in the Saudi-backed league were temporarily stayed as their appeals are considered.

Both the PGA Tour and DP World Tour had refused to grant waivers for players to participate in LIV Golf's lucrative tournaments, with the first two events being held in London and Portland over the past month.

Ian Poulter has been leading the chorus of dissent from the European LIV Golf players, as the biggest names in the sport descended on Ireland's Adare Manor this week for the JP McManus Pro-Am.

He told the media he was going to fight any restrictions that tried to keep him away from a tour he feels he has dedicated a large chunk of his life to.

"My commitment to the European Tour has been there since day one," he said. "And it's still there today. 

"I'm proud of playing so often, when it was to the detriment of world ranking points and FedEx Cup points I could have earned playing more in America.

"I feel disappointed and offended that I've been suspended from playing golf on a Tour that I've played for 24 years."

Chief executive of the DP World Tour, Keith Pelley, said the ruling does not mean players from the Saudi-funded tour will be granted full access to the European tour, but the field for the Scottish Open will be expanded to fit the LIV Golf players.

"I will simply say we are disappointed by the outcome of today's hearing, but will abide by the decision," he said.

"It is important to remember, however, this is only a stay of the sanctions imposed, pending the hearing of the players' appeal as to whether those sanctions were appropriate.

"The make-up of the field for the Scottish Open will be advised in due course, but based on this decision the field size will increase beyond 156. 

"We will make further comment on this in due course, but not during our time at Adare Manor."

DP World Tour chief executive Keith Pelley has hit back at LIV Golf rebels and says sanctions imposed on players were "proportionate and fair".

Lee Westwood and Ian Poulter were among 16 DP World Tour members who were last week fined £100,000 and banned from playing in three events – the first being the Scottish Open next week.

They were sanctioned by the DP World Tour for playing in the inaugural LIV Golf Invitational Series event at Centurion Club without permission last month.

In an open letter, which was addressed to Pelley, published by The Telegraph, the 16 players threatened to take legal action against the DP World Tour if the fines and suspensions were not rescinded.

They also claimed that the DP World Tour is playing "second fiddle" to the PGA Tour in an extended relationship between the two.

Pelley provided a strong response as he refused to back down on Friday.

He said in a statement: "There has been a leak to the media of a letter we received on behalf of a number of LIV Golf players which contains so many inaccuracies that it cannot remain unchallenged.

"Before joining LIV Golf, players knew there would be consequences if they chose money over competition. Many of them at the time understood and accepted that. Indeed, as one player named in the letter said in a media interview earlier this year; 'If they ban me, they ban me.' It is not credible that some are now surprised with the actions we have taken.

"The letter claims that these players 'care deeply' for the DP World Tour. An analysis of the past participation statistics on our Tour in recent years of several of the leading players named suggests otherwise

"One player in particular named in the note has only played six Rolex Series events in the past five years. Another one, only four. I wish many of them had been as keen to play on our Tour then as they seem to be now, based on the fact they have either resigned their membership of the PGA Tour or, if they are still in membership, have been suspended indefinitely.

"Furthermore, given how deeply these players say they care about the DP World Tour, perhaps some of them could have played in Ireland this week in support of our new title sponsor, in particular one player who gave us a signed commitment to play at Mount Juliet.

"With that player currently in action at Pumpkin Ridge, you can imagine the allegation in the letter that we are in the wrong, is hard to accept.

"We also take great exception to an allegation made near the end of the letter which states we are somehow playing 'second fiddle' to the PGA Tour. Nothing could be further from the truth.

"We held a player meeting in Ireland on Tuesday where we outlined in great detail all the many benefits of our expanded relationship with the PGA Tour.

"One of those is an unprecedented ten cards on offer to the PGA Tour, cards that many of the players named in this letter desperately wanted to attain in the early stages of their careers. Why now be critical of those trying to do the same?

"The letter also expresses supposed concern about the future of the DP World Tour. Rest assured no-one should have any worries on that score.

"The DP World Tour is a vibrant, independent and global Tour with increasing and guaranteed prize fund growth over the next five years. We have fantastic tournaments across the year including a host of wonderful national Opens, all played in front of huge crowds, illustrated perfectly by this week's Irish Open.

"Finally, it would not be appropriate for me to comment on any potential legal matters.

"I will simply reiterate that our Members' Regulations which have been in force for more than 30 years, have been accepted by all the players, are there to protect all of our members, and we will use them to take all necessary steps to protect their interests.

"The sanctions for those members who knowingly broke our rules by playing at the Centurion Club without a release are proportionate, fair and, I believe, considered necessary by the majority of our members."

Mexico's Carlos Ortiz is the outright leader after the first round at LIV Golf Portland, finishing five under after his first trip around Pumpkin Ridge Golf Club.

He was on track for a bigger lead than the one stroke buffer he holds, with three birdies from his first four holes after beginning his shotgun start on the ninth tee, before back-to-back bogeys brought him back to the field.

Ortiz finished his round with three birdies on his final five holes, re-taking the lead in the final stages of play.

Dustin Johnson is just one stroke back in outright second place at four under, bogeying his first hole of the day as he started on the 18th, but it would be his only blemish, collecting five birdies and 12 pars the rest of the way.

Rounding out the top-five is Pat Perez, Hideto Tanihara, Wade Ormsby and Branden Grace in a tie for third at three under.

Playing in his first LIV Golf event, Brooks Koepka put in a good showing as one of 13 players to finish under par, tied for seventh along with Hennie du Plessis after their two-under 70s.

Louis Oosthuizen, Martin Kaymer, Scott Vincent and Yuki Inamori are tied for ninth at one under, while big names Patrick Reed and Bryson DeChambeau headline the group at even par.

Koepka's brother Chase Koepka is at one over along with Mexico's Abraham Ancer, winner of LIV Golf's debut event Charl Schwartzel is at two over with Ian Poulter, and Phil Mickelson finished at three over with Sergio Garcia and Kevin Na.

Ian Poulter and Graeme McDowell have hit out at the PGA Tour for their handling of players who have decided to participate in LIV Golf, calling it a "power struggle".

The PGA Tour made the bold move of waiting until after the first LIV Golf event in London had teed off before announcing that any player who participates in the Saudi-backed promotion is "suspended or otherwise no longer eligible to participate in PGA Tour tournament play, including the President's Cup."

In the first round of LIV Golf's debut event, Charl Schwartzel earned the outright lead at five under, trailed by Hennie Du Plessis at four under, while Dustin Johnson and Phil Mickelson were also among the 10 players to finish under par.

Speaking after the round, Poulter strongly disagreed with the PGA Tour's decision to force players to choose between the tours.

"I've played a lot of tournaments all around the world, this event is no different," he said. "It's a shame if they view this as something different.

"I will appeal for sure. It makes no sense. Having two tour cards and the ability to play golf all over the world, what's wrong with that? I believe I've been given permission in the past to play in events around the world.

"I don't know why [the decision was made] – we can all make assumptions as to why. Competition is probably the real reason. It's a power struggle, and it's just disappointing."

Fellow U.K. golfer McDowell echoed Poulter's sentiments, saying it is ridiculous that they are not allowed to compete in events relatively local to them.

"Some guys believe that they shouldn't be in the situation where they have to resign," he said. "They don't feel like they are doing anything wrong. 

"We haven't been issued releases, [but] we feel like we should have been issued releases. We've done it for the last 20 years, operated all over the world.

"We're in the U.K – you've players like myself and Ian Poulter and Lee Westwood, we are in our home markets here.

"We should be allowed to operate here as professional golfers. But hey, we all know the situation is about something bigger.

"It's competition and it's not liked. They are having to play the game the way they feel they have to play it, which is playing hard ball.

"We feel confident that we are well-protected and we are going to just try and do our best."

Ian Poulter and Lee Westwood on Wednesday faced a grilling over their participation in the Saudi-backed LIV Golf Invitational Series that they hope will not end their Ryder Cup days.

The English duo will tee off at Centurion Golf Club when the first event of the controversial breakaway tour starts on Thursday.

Dustin Johnson and Phil Mickelson this week quit the PGA Tour after agreeing huge offers to join the LIV Tour.

Westwood and Poulter were quizzed over their morals as they became the latest players to be asked about Saudi Arabia's human rights record.

When asked if he would play in a tournament organised by Russian president Vladimir Putin, Poulter said: "I'm not even going to comment on speculation" before refusing to answer when quizzed if there is anywhere he would not play on a moral basis.

Westwood then replied "you're just asking us to a hypothetical question there and I'm not going to your answer" after being asked if he would have played in Apartheid South Africa.

Signing up to the LIV Tour has led to uncertainty over whether Ryder Cup stalwarts Westwood and Poulter were ruling themselves out of representing Europe again.

Poulter said: "We don't know [if they could be involved in the Ryder Cup]. I'd like to think it wouldn't [prevent them from being involved], all the golf I've played around the world in all the different countries and tours I don't see why this should be any different.

"It's an unknown risk, we don't know how DP World Tour will view it, it's obviously a factor."

Westwood, who pointed out that he has played on European Tour events in Saudi Arabia, said: "It's something I have to take into account. I'm not sure about the playing days, I'm 50 next April. The captaincy could be in jeopardy as well, but Ian pretty much covered it all.

"What I will say is myself and Ian have been members of the PGA Tour while we've been on the European Tour and that's had no effect in the past on whether people have been captains.

"LIV Golf is another tour so why should it be any different?"

Rory McIlroy and Collin Morikawa faced an overnight wait to learn whether they had made the cut at the windswept Abu Dhabi Championship, as Scott Jamieson clung to first place.

McIlroy made a vital birdie at the par-five 18th to improve his score to three over, having dropped four shots over the previous five holes.

His opening 72 had been way off the pace, and a 75 in the gusting wind could be considered a better result, nudging the four-time major winner up 15 places to a share of 60th position at Yas Links.

Reigning Open champion Morikawa added a 74 to his opening 73 to sit alongside McIlroy, both men hoping there was no surge coming from those left with holes still to play in the second round.

Play was suspended amid fading light on Friday, after the high winds made scoring treacherously difficult.

Jamieson had opened with a 63 on Thursday, but he had two bogeys and a double in his second round, which he started from the 10th tee. Birdies at 11 and eight kept the 38-year-old Scot just ahead of the field after a 74, with Viktor Hovland, Ian Poulter and James Morrison all one shot back.

Hovland also shot a 74, Poulter impressed with a 72, while Morrison, level par for the day, had four holes of his round to complete as darkness fell.

Former Open champion Shane Lowry was in a group of four on five under, while Denmark's Jeff Winther was the only player to break 70, his round of 69 featuring five birdies and taking him to four under, in a share of ninth.

In the first DP World Tour event of the year, the drastic change in playing conditions provided a stiff test for all, some former Masters winner Danny Willett was among those who struggled.

His 80, after an opening 72, meant the Yorkshireman could be definitely confirmed as missing the cut on eight over. Only four players scored worse.

The top 65 players and ties are assured of playing the final two rounds, with the second round to resume at 07:30 local time on Saturday (03:30 GMT).

Jamieson, the world number 336, said it "certainly wasn't easy" for the players who had enjoyed conditions suitable for low-scoring on the opening day.

"It's so tricky," he said, quoted on the DP World Tour website. "Obviously hitting shots is tricky with all the gusts, but the hardest thing is putting.

"You get over the ball and you feel like you've got to be so tense to stop everything moving, but that's the worst thing you can do when you're trying to putt.

"I holed a lot of really good putts from inside five feet today which kept my score respectable.

"It's a great test from tee to green, if you want to call it a test, at the mercy of whatever gust you might or might not get."

Scott Jamieson holds a one-shot lead from Viktor Hovland after the first round of the Abu Dhabi Championship. 

Jamieson got the first DP World Tour event of the year under way with a brilliant nine-under 63 at the Yas Links course on Thursday.

The Scot was bogey-free through his opening round, hitting the turn in 32 and making another five birdies on the back nine to set the clubhouse target at the DP World Tour's newest venue.

Jamieson started with a birdie and never looked back, fittingly also finishing his excellent round with another gain.

He said in an interview with the DP World Tour: "Eight weeks off from tournament golf, you're always a little bit on edge at the start of the day, but a birdie at the first settled any edge there was and I was just really solid all day.

"One tee shot wasn't very good, but I kind of got lucky and recovered well."

Hovland signed for an eight-under 64 in the opening Rolex Series event of the season, with a bogey five at the 12th the only blemish on the world number seven's card.

The Norwegian had gone out in 31 and finished with a flourish, making three birdies in his final four holes.

World number two Collin Morikawa, winner of the Race to Dubai last year, has work to do following a one-over 73, with Rory McIlroy also having ground to make up at level par.

Thomas Pieters is two shots adrift of Jamieson in third place, while Ian Poulter, Tyrrell Hatton and James Morrison are among a group of five players on six under.

Takumi Kanaya and Victor Perez also started with six-under rounds of 66.

The United States claimed the Ryder Cup at Whistling Straits as they defeated Europe by a record margin with a 19-9 triumph on Sunday.

Padraig Harrington's side had won seven of the past nine editions of the biennial event but failed to recover from a six-shot disadvantage heading into the final day.

USA required just 3.5 points to claim the trophy on home soil, and they managed to reach that mark in just the fifth match of the finale as Collin Morikawa finished all square with Victor Hovland.

Europe had early hope through Rory McIlroy, who cruised past Xander Schaffuele to collect his first win at this year's edition but Patrick Cantlay quickly restored USA's dominance by defeating Shane Lowry.

Fellow rookie Scottie Scheffler enjoyed a magnificent singles debut, overcoming world number one Jon Rahm, before Bryson DeChambeau crushed Sergio Garcia with two holes to spare.

Morikawa and Hovland were neck-and-neck until the penultimate hole, where the former landed his iron shot within tap-in range to secure at least a half point and the trophy for the USA. Hovland won the last to halve their battle, but the Americans had the overall match in the bag.

Paul Casey chased Dustin Johnson but could not stop the two-time major champion from winning on the final hole to complete a 5-0-0 record, while Brooks Koepka eased past debutant Bernd Wiesberger despite a spirited performance from the Austrian.

Justin Thomas produced a dominant performance to demolish Tyrrell Hatton, while Lee Westwood - making his record 47th match appearance for Europe - picked up a consolation point against Harris English.

Ian Poulter also maintained his unbeaten record in singles matches to collect Europe's second win on the day, but that proved in vain, with Jordan Spieth and Tommy Fleetwood sharing the spoils as they both faltered on the 18th.

However, in the final pair, Daniel Berger edged past Matthew Fitzpatrick, who found the water at the last, as the USA defeated Europe by a record margin, surpassing the previous 18.5 to 9.5 win at Walton Heath Golf Club in 1981.

Shot of the day

Team USA were looking for a positive start to quash any suggestions of another repeat of the 'Miracle at Medinah' and DeChambeau provided exactly that in the fourth match of the day.

He comfortably reached the green with his drive on the par-four first, much to the delight of the Wisconsin crowd surrounding the tee box.

The world number seven could have claimed the 'shot of the day' tag with his drive, however, the subsequent 41-foot putt that followed to secure an eagle was both magnificent and important to place early pressure on the evergreen Garcia.

Player of the day

Scheffler, who was a Ryder Cup rookie and has yet to win on the PGA Tour, was sent out early and tasked with tackling world number one Rahm.

The American's rapid start, recording five birdies in the opening six holes, was enough to see off Rahm, who could not fight back from that point onwards and was finished off with three holes to go.

Sunday's singles win made it 2.5 points from a possible three, Scheffler unbeaten in the four-balls in a memorable debut in the Ryder Cup.

Chipping in

USA's winning captain Steve Stricker: "Speechless. Everything about it, these guys all came together. Two weeks ago they came together. Showed me a lot about this group of guys. They had a mission this week and you could tell, they played great and they came together. I just can't tell you - I mean, Brooks and Bryson wanted to play together; that's how much it came together. That shows a lot about this whole team."

Europe captain Padraig Harrington: "Of course we're disappointed. But the USA played well. Look, they out-played us, they are a strong team. They got their plan right. They got some momentum going. They started well. It's been good, no doubt about it. The fans were better - it's tough when you're going away and having no Europeans, but certainly above expectations in terms of an away crowd."

Rory McIlroy (on NBC): "I don't think there's any greater privilege to be a part of one of these teams, European or American. It's an absolute privilege. I've gotten to do this six times. They have always been the greatest experiences of my career. But this team, and what it feels like to be a part of, to see Sergio [Garcia] break records, to see Jon Rahm come into his own this week, to see one of my best friends, Shane Lowry, make his Ryder Cup debut. The more I play in this event I realise it's the best event in golf, bar none."

A little birdie told me...

Johnson entered this year's tournament with a 7-9 record in four previous appearances.

However, he made Ryder Cup history as he went 5-0-0, becoming just the fifth player to do so in a single Ryder Cup and the third since battles between Europe and the USA began in 1979. Previous matches saw teams from Great Britain, and Great Britain and Ireland, take on the Americans.

Johnson knew victory against Casey would see him etch his name in history, and he duly confirmed victory on the final hole, with the Englishman dragging his potential levelling putt wide.

Sunday's single results

Rory McIlroy (Eur) beat Xander Schauffele (USA) 3 and 2

Patrick Cantlay (USA) beat Shane Lowry (Eur) 4 and 2

Scottie Scheffler (USA) beat Jon Rahm (Eur) 4 and 3

Bryson DeChambeau (USA) beat Sergio Garcia (Eur) 3 and 2

Collin Morikawa (USA) tied Victor Hovland (Eur) A/S

Dustin Johnson (USA) beat Paul Casey (Eur) 1UP

Brooks Koepka (USA) beat Bernd Wiesberger (Eur) 2 and 1

Ian Poulter (Eur) beat Tony Finau (USA) 3 and 2

Justin Thomas (USA) beat Tyrrell Hatton (Eur) 4 and 3

Lee Westwood (Eur) beat Harris English (USA) 1UP

Jordan Spieth (USA) tied Tommy Fleetwood (Eur) A/S

Daniel Berger (USA) beat Matthew Fitzpatrick (Eur) 1UP

The 12 singles pairings for the final round of the Ryder Cup have been announced, with the United States looking to dethrone Europe on Sunday.

Team USA hold a commanding 11-5 lead following Saturday's foursomes and four-ball at Whistling Straits, where the hosts boast the biggest two-day advantage since 1975.

Steve Stricker's USA require just 3.5 points to reclaim the cup from Europe, who will need to produce the biggest ever comeback if they are to claim the required nine points to defend their crown.

"That was an important one," Stricker said after USA split the four afternoon matches. "If they blank us, they're right back in the game. I think getting two points and splitting the session is a good outcome for us."

Xander Schauffele will lead the Americans out to start Sunday's play in Wisconsin, facing struggling European star Rory McIlroy.

McIlroy was dropped for Saturday's foursomes having struggled on Friday – the first time in the four-time major champion's Ryder Cup career that he has missed a session. He returned for the four-ball but fell to another defeat alongside Ian Poulter against Dustin Johnson and Collin Morikawa 4 and 3.

The second matchup pits USA's Patrick Cantlay against Shane Lowry, while Europe captain Padraig Harrington put world number one Jon Rahm down to face Scottie Scheffler.

Bryson DeChambeau and European star Sergio Garcia meet in match four, American Collin Morikawa tackles Viktor Hovland and unbeaten USA veteran Johnson plays Paul Casey.

Elsewhere, Brooks Koepka is set to tee off against Bernd Wiesberger, Poulter and Tony Finau go head-to-head, Justin Thomas will clash with Tyrrell Hatton, Lee Westwood goes up against Harris English, Jordan Spieth faces Tommy Fleetwood and the final matchup is a showdown between Daniel Berger and Matt Fitzpatrick.

Tiger Woods may not be at Whistling Straits, but his influence was felt as the United States made a rip-roaring start to their Ryder Cup trophy bid.

The 45-year-old Woods is continuing his recovery from the February high-speed car crash near Los Angeles that left him with serious leg injuries, and it remains to be seen whether he is capable of playing again on tour.

But the 15-time major winner is willing the USA team to snatch back the cup from Europe, and Xander Schauffele revealed he had been in touch with a few words of encouragement.

Woods, who often struggled to take his world-beating form onto the Ryder Cup stage, had his say before the Americans raced into a 3-1 lead following the morning foursomes.

Schauffele, after teaming up with fellow debutant Patrick Cantlay to land a dazzling 5 and 3 win over Rory McIlroy and Ian Poulter, confirmed Woods wanted to offer help from afar.

"We got a nice message from Tiger last night," Schauffele said on the Golf Channel.

"I'm not going to reveal what it said, but Pat and I knew and we referred to it a few times today, and we knew what we needed to do.

"We knew he was fist-pumping from the couch. Whether he was on crutches or not, he's as fired up as anyone back at home, so it's nice to have his support."

Woods has a disappointing record of just 13 wins from 37 Ryder Cup matches, an unexpectedly weak performance given his PGA Tour and major championship prowess.

But he remains an idol for many players on the team, with Schauffele and Cantlay two of six rookies on Steve Stricker's roster this year.

Cantlay said: "[There's] no better role model and no better leader and somebody you can always learn from.

"I saw him last week at home and picked his brain on Ryder Cup and applied some of that here today."

The USA pair sped to a 5up lead through five holes on the way to their dominant victory, feeding off the largely American crowd.

A disappointed McIlroy said: "The start wasn't great. I don't know if anyone could have beat Xander and Patrick today.

"They played really good, four birdies in a row. Geez, yeah, they played great. They were a great pairing today, and all you can do is praise them for the way they played."

Harris English heads into the weekend at the WGC-FedEx St. Jude Invitational with a two-stroke lead after maintaining his spot atop the leaderboard Friday.

The American followed Thursday's 62 with a five-under-par 65 at TPC Southwind, where he won his first PGA Tour title eight years ago. 

Australia's Cameron Smith and Abraham Ancer of Mexico surged into a tie for second place after carding 62s of their own in Memphis to sit at 11 under for the tournament.

Ian Poulter (66), Scottie Scheffler (65) and Sam Burns (64) are three back of the lead at 10 under, while Louis Oosthuizen (64) and Bryson DeChambeau (66) are well within striking distance at nine under. 

English started on the back nine and made three birdies going out before carding his first and only bogey of the day at the par-four second hole. But he managed to follow that disappointment with an eagle on the third before adding one more birdie later in his round.

Smith also eagled the third on the way to tying a PGA Tour record, as he needed just 18 putts to complete his bogey-free round. 

That included a two-put at the last, not long after Smith figured out he was on the verge of history. 

"I was walking down 17 and was counting my putts up and I thought, 'No, that can't be right,'" Smith said. 

Further down the leaderboard, defending champion Justin Thomas (67) is seven strokes back of the lead at six under along with two-time major winner Dustin Johnson (65).

Phil Mickelson (66) is at five under, whie Hideki Matsuyama (69) and Patrick Reed (69) are well back at three under. 

Rory McIlroy (66), Sergio Garcia (68), and Collin Morikawa (71) are at two under, one stroke better than Brooks Koepka (69). 

Jordan Spieth (69) enters the weekend at even par and Olympic champion Xander Schauffele (73) is at two over. 

Harris English won his first PGA Tour title at TPC Southwind eight years ago, and he has another triumph in his sights after opening with a 62 at the WGC-FedEx St. Jude Invitational. 

The American has a two-stroke lead over four pursuers, as Ian Poulter, Carlos Ortiz, Jim Herman and Matthew Wolff carded six-under-par 64s Thursday in Memphis, Tennessee. 

Bryson DeChambeau, Scottie Scheffler and Marc Leishman were three shots back after shooting 65, with DeChambeau making his first start since missing the Tokyo Olympics following a positive COVID-19 test. 

Among the group two shots behind them at five under were defending champion Justin Thomas, Open Championship winner Collin Morikawa and the red-hot Louis Oosthuizen, who has top-three finishes in four of his last five starts.

Among other notables, Patrick Reed and Hideki Matsuyama are at two under, with Phil Mickelson, Dustin Johnson and Olympic champion Xander Schauffele at one under, and Brooks Kopeka and Sergio Garcia at even par.

Jordan Spieth is at one over and Rory McIlroy at two over, leaving him 62nd in the 66-player field. 

But they will all start Friday chasing English. The 32-year-old carded seven birdies on a blistering front nine, then faltered a bit with bogeys at 10 and 12 before closing his round with birdies at three of the last four holes. 

"It was one of those rounds where I was hitting it really good off the tee and making a lot of good putts," English told reporters. 

English won at Memphis in its previous incarnation as the Tour's St. Jude Classic in June 2013, then added another title that fall. 

That was his last PGA Tour win before this year, which has seen him take the Tournament of Champions in Maui in January and the Travelers Championship in June. 

Rory McIlroy played a tee shot into a swimming pool during a shocking start to his WGC-Dell Technologies Match Play campaign, where he was hammered 6 and 5 by Ian Poulter.

The Northern Irishman has had well documented issues with his swing in recent weeks and has linked up with renowned coach Pete Cowen for the tournament at the Austin Country Club.

But McIlroy struggled badly during his round-robin opener against fellow Europe Ryder Cup star Poulter and was already two down by the time he pulled his tee shot wildly left at the fifth tee, with his ball sinking into the pool at a nearby house.

He managed to claw within one by the eighth, but Poulter then won five holes in a row to condemn McIlroy to a heavily opening defeat in Group 11, where Cameron Smith beat Lanto Griffin in the pool's other opener.

Dustin Johnson had no such woe as he started with a 2 Up win over Adam Long in Group One, while Jon Rahm defeated Sebastian Munoz 1 Up (Group 3), and Bryson DeChambeau overcame Antoine Rozner 2 Up (Group 5).

Justin Thomas was beaten 3 and 2 by Matt Kuchar (Group 2), though, while Jordan Spieth outclassed Matthew Fitzpatrick 3 and 1 (Group 15) despite a comedy moment when he drove the 15th green…but from the 13th tee.