Dustin Johnson capped off a huge year by pipping Cameron Smith to clinch victory for the all-American 4 Aces GF at the LIV Golf Miami Team Championship on Sunday.

Johnson nailed a routine final putt of the season to cue the celebrations for his team, featuring Patrick Reed, Lalor Gooch and Pat Perez whom all had solid rounds in Sunday's Championship.

The Aces were crowned the inaugural LIV Golf team champions at Trump National Doral by one shot ahead of Cameron Smith's Punch GC, with Brooks Koepka's Smash GC and Louis Oosthuizen's Stinger GC well back.

The triumph capped a money-spinning season for two-time major winner Johnson, finishing with more than $35 million in earnings.

"It's been amazing," Johnson said. "This week's been incredible. This whole season has gotten better and better and obviously this finale has been unbelievable."

Among the four Aces players, they scored a combined seven-under 281 in the singles stroke-play on Sunday, with Johnson, Reed and Perez all finishing two-under-par, while Gooch was one under, having started the round with three birdies in his first for holes.

Johnson's team edged out Punch for whom Smith carded a round-best seven-under-par 65 with eight birdies. That was offset by Marc Leishman's 74, Wade Ormsby's 73 and Matt Jones' 70 as Punch combined for a six-under 282.

Smith, who won this year's Players' Championship before joining the LIV Tour, went head-to-head with Johnson.

Smash finished 11 strokes behind with a combined four-over 292, with Jason Kokrak their best with a four-under-par 68.

Stinger were a further six shots behind Smash with a combined 10-over 298, despite one-under rounds from Oosthuizen and Charl Schwartzel, with Branden Grace shooting an 80.

Dustin Johnson sunk a long-range eagle putt on the first playoff hole in LIV Golf history to secure a victory in Boston on Sunday, defeating Anirban Lahiri and Joaquin Niemann on the extra hole.

Lahiri had the best third round of the playoff participants, posting a six-under 64 to work his way to 15 under, while Johnson shot 65 and Neimann a 66. Neimann came into the day one stroke off Talor Gooch's lead, while Johnson was alone in third place one further back.

In the playoff, which took place on the par-five 18th hole, Lahiri sailed over the back of the green, and Niemann found a fairway bunker, leaving Johnson as the only player to make the green in three and leave himself an eagle putt.

The two-time major winner made sure a second playoff hole was not necessary, bashing in the eagle, which would have sailed at least 10 feet past the hole if it did not hit it dead in the middle.

As well as the $4million prize for winning the event, Johnson and each of his 4 Aces GC teammates – Gooch (13 under), Pat Perez (seven under) and Patrick Reed (three under) –will also take home an extra $750,000 for topping the team standings for the third tournament in a row

It was a packed leaderboard down the home stretch, with Lee Westwood and LIV debutant Cameron Smith also holding a share of the lead with two holes remaining, before late bogeys took them out of the playoff and into a tie for fourth at 14 under.

Gooch, after entering the round in the outright lead, could only muster a one-under 69 as he watched the field race past him on a day with friendly scoring conditions.

Jason Kokrak finished seventh at 12 under, Mexico's Abraham Ancer was alone in eighth at 11 under, and rounding out the top-10 was a three-man tie for ninth at 10 under consisting of Kevin Na, Louis Oosthuizen and Sergio Garcia.

Phil Mickelson finished tied for 40th at two over, and the last-placed Sihwan Kim will take home $120,000 after finishing 16 over, posting rounds of 87, 63 and 76.

Two-time major winner Dustin Johnson stormed up the leaderboard in the second round of LIV Golf Boston but Talor Gooch remains on top one stroke ahead of tour newcomer Joaquin Niemann.

Johnson responded from his opening-day 67 with a seven-under-par round of 63 to move within two strokes of the lead on Saturday at The Oaks.

The 38-year-old American's stand-out day included eight birdies and an eagle on the par-five eighth hole, along with three birdies. Johnson had claimed the outright lead with three holes to play before Gooch regained it.

Gooch, who shared the lead with Matthew Wolff after the first day on Friday, remains on top at 12-under, with Niemann one shot behind and Johnson's round moving him up to 10-under.

Wolff slipped four strokes off the pace after carding 69 for the day, while tour newcomer Cameron Smith also dropped back with a one-under-par round of 69.

Anirban Lahiri is outright fourth at nine-under, with Jason Kokrak carding a five-under-par 65 to move into equal fifth with Bernd Wiesberger and Wolff at eight-under overall.

Johnson's surge along with Gooch's excellent two days means Four Aces GC are top of the standings in the team element at 22-under.

Hy Flyers GC, captained by Phil Mickelson, are second at 19-under led by Wiesberger and Wolff. Mickelson is back at three-over overall ahead of Sunday's final round.

Big new signings hit the ground running in the first round of LIV Golf Boston, but after 18 holes at The International Golf Club it is Matthew Wolff and Talor Gooch tied for the lead at seven under.

While Gooch got to his 63 in a traditional fashion, posting eight birdies and one bogey, Wolff had far more ups and downs, making up for his three bogeys with six birdies, an eagle and a hole-in-one – the first ace in LIV Golf history.

One stroke behind the leaders are new arrivals Cameron Smith and Joaquin Neimann, after both played in last week's PGA Tour Championship.

Smith had five birdies and two eagles, showing off his firepower, but a double-bogey on the par-four 14th hole cost him a chance at the first-round lead.

After his round, Smith called it "great fun" and said "it was nice to see a familiar face" about his pairing with Dustin Johnson.

The rest of the field is at least two further strokes back, with Kevin Na, Bernd Wiesberger, Louis Oosthuizen, Paul Casey and Anirban Lahiri occupying the tie for fifth at four under.

The logjam at three under includes Dustin Johnson and Pat Perez, who along with Gooch and Patrick Reed (one under) have their Four Aces GC sitting second in the team standings. They trail only Hy Flyers GC, consisting of Wolff, Wiesberger, Cameron Tringale (one over) and Phil Mickelson (four over, 45th out of 48).

Bryson DeChambeau and Carlos Ortiz are at one under, and the Koepka brothers – Brooks and Chase – shot even-par 70s.

The PGA Tour has won their first legal battle against the controversial LIV Golf brand, with a judge ruling on Tuesday that LIV Golf players are not eligible to play in the FedEx Cup starting this week.

Specifically, Talor Gooch, Matt Jones and Hudson Swafford were the three golfers seeking the temporary restraining order to play at the FedEx St. Jude Championship – but a judge ruled that their cases did not prove they were victims of "irreparable harm" due to their highly paid contracts.

The LIV Golf lawyers argued that the FedEx Cup is about "more than money" – even going as far as calling it "the Super Bowl of golf", and comparing former FedEx Cup winners to all-time greats Jack Nicklaus and Greg Norman.

They claimed the PGA Tour was attempting to use monopoly powers to stamp out fair competition, to which the PGA lawyers countered with the facts that five of their top-10 most famous players – based on their Player Impact Program – have already jumped ship, and that Gooch, specifically, signed a contract worth significantly more than the $18million awarded to the winner of the FedEx Cup.

LIV Golf were queried about how they could project a 20 per cent market share while also calling the PGA Tour a monopoly, and that being a monopoly is not illegal, only using monopoly powers against another organisation is.

The judge explained that the breakaway golfers would have ample opportunity to play on the alternate tour; that their upfront LIV Golf contracts took into account the possibility that they would not be eligible for the FedEx Cup and/or major championships; and that the inability to win even more money does not constitute "irreparable harm".

Some other interesting tidbits were revealed during proceedings, including a direct contradiction from a prevalent storyline about the LIV Golf contracts.

LIV Golf lawyers claimed that prize money won from tournaments would be "recouped against the LIV contracts" – with a clip emerging immediately afterwards showing an LIV Golf spokesperson specifically saying during a news conference featuring Pat Perez and Brooks Koepka that all prize money would be "in addition to the contracts".

Their lawyers also confirmed that all 48 spots had been filled for next LIV Golf season, and the judge indicated that the larger-scale antitrust trial would be tentatively scheduled for September.

Talor Gooch has claimed criticism of LIV Golf stars for sportswashing is not fair, explaining: "I'm not that smart... golf is hard enough."

Gooch has been named as one of 12 team captains for the new Saudi-backed LIV Golf Invitational Series.

The two-time PGA Tour winner will captain Torque GC, with bigger names like Phil Mickelson – leading Hy Flyers GC – and Dustin Johnson – of 4 Aces GC – among his opponents.

All of those to abandon the PGA Tour for the new project have come in for scrutiny given the source of the huge financial backing the breakaway league has.

LIV Golf is being funded by Saudi Arabia's Public Investment Fund (PIF), linking the series to a country with a hugely concerning human rights record.

As with other PIF acquisitions, such as Premier League club Newcastle United, LIV Golf has been highlighted as an example of sportswashing for the Saudi regime.

But this suggestion was put to Gooch on Tuesday, as he faced the media at the event's launch.

"I don't think that's fair," he said. "Also, I'm a golfer. I'm not that smart. I try to hit a golf ball into a small hole. Golf is hard enough.

"I try to worry about golf, and I'm excited about this week."

Gooch has earned $9million over his entire PGA Tour career; a single win at one of these events would fetch almost half of that at $4m. Even the player in last place at each regular season tournament will receive $120,000.

Scottie Scheffler backed up last month's Phoenix Open triumph by taking out the Arnold Palmer Invitational by one stroke after a final round of 72 at Bay Hill on Sunday.

Scheffler carded an even-par round with three birdies and three bogeys to finish five under and one shot ahead of Viktor Hovland, Billy Horschel and Tyrrell Hatton – who stormed 10 places up the leaderboard with a final-day 69 to earn a tie of second.

The 25-year-old Scheffler made his move on the third day, with a five-under 68 launching him into contention. American Scheffler will now move up to fifth on the official world rankings.

Joint overnight leaders Horschel and Talor Gooch lost their grip on top spot, with the former making three bogeys and a double bogey on his final-day front nine before finishing with a three-over 75.

Gooch ended up two further strokes back with a five-over 77 after four bogeys and two double bogeys on his front nine.

Norwegian world number four Hovland loomed as the likely player to capitalise on their misfortune, as he assumed the lead.

But five bogeys in Hovland's closing 11 holes left the door open for Scheffler, who held his nerve, notably making an excellent long putt to save par on the 15th hole.

"It feels great, especially to win on such a difficult golf course and the way it finished," Scheffler told Sky Sports.

"I didn't play my best stuff, I just kept grinding and made some key putts down the stretch, and it was really just a fight all day."

First-round leader Rory McIlroy never threatened on Sunday, with a four-over-76 meaning he finished back at one over after 72 holes.

World number one Jon Rahm was one stroke behind the Northern Irishman after a final-round 74.

Norwegian world number four Viktor Hovland surrendered his lead at the Arnold Palmer Invitational with two bogeys to finish the third day at Bay Hill on Saturday.

Hovland, who was the leader at halfway, carded a three-over 75 with six bogeys, saving face with a hole-out eagle from the bunker on the sixth and birdie on the eighth.

The Norwegian had retained his lead until bogeys on 17 and 18 allowed American pair Billy Horschel and Talor Gooch to claim a share of the lead.

Horschel and Gooch are seven-under after 54 holes, with Hovland one stroke back, followed by Scottie Scheffler at five-under after he carded a joint round-high four-under-68.

"I was really in a good rhythm until some bad shots on the back nine," Hovland told reporters.

On his hole-out eagle, he added: "That was awesome. Obviously, not the greatest start to the day. Even the pars that I made on the next few holes was really scrappy. Hit some really bad shots.

"Then obviously walking up to the greenside bunker on that hole was hard on the downslope and no green to work it. I thought I was in no man's land, just try to chunk it out there and give myself a putt at it. It came out really soft and landed in the first cut and just died and went in."

Horschel carded a one-under-71 to claim the joint lead, with three bogeys and four birdies, including closing out with an important birdie putt.

Gooch had an even round for 72, bogeying the 18th to settle for a share of the lead after he had birdied both the 15th – with a 33-foot putt - and 16th.

Scheffler surged up 16 spots and into contention with a round that included three birdies and an eagle on his back nine. The American rolled in a 21-footer for eagle on the 16th.

Max Homa, playing alongside Scheffler, landed a rare ace on the 14th hole although he is off the pace with an even card overall in a group featuring top-ranked Jon Rahm.

Gary Woodland is behind Scheffler at four-under, with Rory McIlroy among a group of three at three-under ahead of the final day.