The leading figures in the controversial partnership between Saudi Arabia and the PGA Tour have been summoned to attend a United States Senate hearing next month.

PGA Tour commissioner Jay Monahan, Saudi Arabia’s Public Investment Fund (PIF) governor Yasir Al-Rumayyan and LIV Golf CEO Greg Norman have been asked to appear at a Permanent Subcommittee on Investigations meeting on July 11 to examine the Tour’s shock unification with LIV Golf.

The PGA Tour announced a fortnight ago it was creating a new commercial entity with the DP World Tour and PIF, a move it said would “unify golf” and which brought an end to a legal dispute between the PGA Tour and LIV Golf.

The surprise merger has attracted criticism, with the Senate announcing it would open an investigation, which has been followed by this announcement of the hearing.

Senator Richard Blumenthal, who chairs the committee, said in a statement posted on his Twitter account: “Our goal is to uncover the facts about what went into the PGA Tour’s deal with the Saudi Public Investment Fund and what the Saudi takeover means for the future of this cherished American institution and our national interest.

“Americans deserve to know what the structure and governance of this new entity will be. Major actors in the deal are best positioned to provide this information and they owe Congress – and the American people – answers in a public setting.”

Senator Richard Johnson, who also sits on the committee, added: “Fans, the players, and concerned citizens have many questions about the planned agreement between the PGA Tour and LIV Golf.

“I look forward to hearing testimony from the individuals who are in the best positions to provide insight to the public regarding the current state of professional golf.

“I hope that this hearing and any other role that Congress plays in this matter will be constructive.”

Jay Monahan has ruled out the prospect of reconciliation between the PGA Tour and LIV Golf Invitational Series rebels.

The two competitions are locked in legal proceedings, with LIV Golf players submitting an antitrust lawsuit against the PGA Tour after they were suspended following their moves.

LIV Golf argues that players have been treated unfairly and the decision suppresses competition, with the relationship between the two competitions growing increasingly sour.

That mood is unlikely to change any time soon, with Monahan saying ahead of the Presidents Cup in North Carolina that the prospect of a truce is "off the table".

"Listen, I think I've been pretty clear on this: I don't see this happening," he told the Golf Channel.

"When you look at where we are, and you think about words and actions, we're currently in a lawsuit, so coming together and having conversations, to me, that card is off the table, and it has been for a long period of time.

"When you look at the PGA Tour, and you look at where we are today, and you look at what it is that we try and accomplish every single day – what's our focus? To put the best competitive platform forward for the best players in the world to achieve at the highest level, to win the championships that have history, that have tradition, that create legacy.

"That is what we're going to continue to do, and we're going to continue to get better at it, we're going to continue to get stronger at it.

"You've heard me say before that we're going to focus on things that we control; we have more assets at our disposal, stronger partnerships and we have the best players in the world telling us that not only are they going to commit to play more, but they're really looking at the organisation to accomplish that.

"It's all about where we are and where we're going, and again, I couldn't be more excited about the possibilities here."

Rory McIlroy believes the announced enhancements to the PGA Tour are "a great step in the right direction" as the battle with the LIV Golf Invitational Series rages on.

On Wednesday, PGA Tour commissioner Jay Monahan introduced several changes to the Tour, with the key emphasis on bringing the leading players together more often.

The announcements came after Tiger Woods and other leading players met last week to discuss what the PGA Tour should do going forward.

LIV Golf has sent shockwaves through the sport with many high-profile players making the switch to the Saudi-backed tour, including Phil Mickelson, and the Open winner Cameron Smith is reportedly set to follow suit.

Other alterations announced included a commitment from top players to feature in at least 20 PGA Tour events per year, an expansion to the player impact program and the guarantee of minimum earnings for full Tour members.

Four elevated events with purses of at least $20million have been added, taking the schedule up to 12 such tournaments next season, and the top players have agreed to compete in all of them.

McIlroy was encouraged by the changes, telling reporters ahead of the Tour Championship: "I care deeply about our sport. I care about its history. I care about its legacy. I care about the integrity of the game. 

"We all sort of are our own little independent businesses and we sort of try to compete against each other, and I think this is the first time in a long time where we sort of all sat down and were like, let's try to be business partners.

"How can we all pull in the same direction here to benefit everyone and to help the entire TOUR and to help each other basically.

"Unfortunately, Tiger Woods doesn't play as much as he used to. Tiger Woods was the single biggest draw that the PGA Tour had, amongst other things. We have to recognise that.

"So for the 23 of us that were in that room last Tuesday, including Tiger, we all have to sit down [and ask], okay, what is the best thing for our Tour going forward?

"What can we do to help put forward the best product possible so that in 50 years' time the PGA Tour is still thriving and we can safeguard the future of the Tour? That was basically what last week was about.

"Obviously that has culminated in some of the announcements that have been made today [Wednesday]. I'm sure there will be some changes going forward, as well, but I think today was a great step in the right direction."

When questioned on how the changes would benefit the Tour, the four-time major winner replied: "If you're trying to sell a product to TV and to sponsors and to try to get as many eyeballs on professional golf as possible, you need to at least let people know what they're tuning in for.

"When I tune into a Tampa Bay Buccaneers game, I expect to see Tom Brady throw a football. When I tune into a Formula 1 race, I expect to see Lewis Hamilton in a car.

"Sometimes what's happened on the PGA Tour is we all act independently and we sort of have our own schedules, and that means that we never really get together all that often.

"I think what came out of the meeting last week and what Jay just was up here announcing is the fact that we've all made a commitment to get together more often to make the product more compelling."

McIlroy also revealed he had spoken to Smith about his reported defection to LIV Golf.

"I had a conversation with Cameron Smith two days after the Open. Firstly, I wanted to congratulate him," McIlroy disclosed.

"But I would at least like people to make a decision that is completely informed and basically know this is what's coming down the pipeline. This is what you may be leaving behind.

"I just don't want people making decisions – hearing information from one side and not from another. So I think that's sort of been my whole thing this entire time.

"I've always said guys can do whatever they want. Guys can make a decision that they feel is best for themselves and their families. But I want guys to make decisions based on all of the facts."

Top players have made an "unprecedented commitment" to the PGA Tour by agreeing to further enhancements to the schedule.

PGA TOUR commissioner Jay Monahan on Wednesday detailed four key items that will be introduced to bring the game's leading players together more often.

The latest enhancements were announced a week after Tiger Woods met fellow PGA Tour players amid the ongoing threat posed by LIV Golf.

There will be additional elevated events for 2023, a commitment from top players to compete in at least 20 PGA Tour events per year, an expansion to the player impact program and guaranteed league-minimum earnings for full Tour members.

The addition of four elevated events - which will have purses of at least $20million - brings the total to 12 for next season and the top players have agreed to tee off in all of them.

Changes to the player impact program will see 20 rather than 10 golfers rewarded, with the bonus pool also doubling to $100m.

The launch of an earning assurance program will guarantee fully exempt members earn $500,000, provided they play in 15 events.

Monahan said at the TOUR Championship: "Our top players are firmly behind the Tour, helping us deliver an unmatched product to our fans, who will be all but guaranteed to see the best players competing against each other in 20 events or more throughout the season."

He added: "Today is a culmination of a strengthened partnership between the Tourand the players, and amongst the players themselves

"It's unprecedented for our Tour and a testament to who these guys are and what they believe in."

PGA Tour commissioner Jay Monahan delivered a stern and scathing response to an antitrust lawsuit filed Wednesday by 11 suspended players currently competing in the Saudi-funded LIV Golf league.

The lawsuit, which includes Phil Mickelson and Bryson DeChambeau among the most prominent plaintiffs, was filed just over a week before the FedEx Cup’s first playoff event, the St Jude Championship.

Six LIV players part of the lawsuit – Taylor Gooch, Jason Kokrak, Matt Jones, Hudson Swafford, Abraham Ancer and Carlos Ortiz – would be eligible for the playoffs if not banned by the PGA for joining the rival league. Gooch, Jones and Swafford have additionally filed a temporary restraining order to allow them to compete in the St Jude tournament.

The next LIV event is not scheduled to begin until September 2 at The International outside of Boston. 

"We have been preparing to protect our membership and contest this latest attempt to disrupt our Tour, and you should be confident in the legal merits of our position," said Monahan in a memo to PGA players.

"Fundamentally, these suspended players – who are now Saudi Golf League employees – have walked away from the Tour and now want back in. With the Saudi Golf League now on hiatus, they're trying to use lawyers to force their way into competition alongside our members in good standing.

"It's an attempt to use the Tour platform to promote themselves and freeride on your benefits and efforts. To allow re-entry into our events compromises the Tour and the competition, to the detriment of our organisation, our players, our partners and our fans. 

"Let me be clear: we will continue to defend the members who abide by the regulations written by and for the players."

The suit, filed in San Francisco’s U.S. District Court, also contends that the PGA suspended Mickelson in March for recruiting Tour members to join the Saudi league. The six-time major winner was later denied reinstatement after participating in the inaugural LIV event near London in June.

The PGA has prohibited players competing in LIV events held the same week as a Tour-sponsored tournament without a release, and will not grant releases for LIV competitions held in North America.

LIV members, a list which also includes such top golfers as Dustin Johnson, Brooks Koepka, Sergio Garcia and Patrick Reed, remain eligible for The Masters, U.S. Open, Open Championship and PGA Championship, as the four majors are not run by the PGA.