Rory McIlroy has reiterated he has no interest in joining the Saudi-backed LIV Golf Invitational Series and believes decisions made purely based on money "usually doesn't end up going the right way."

Dustin Johnson and Phil Mickelson this week quit the PGA Tour after agreeing massive paydays to join the breakaway LIV Tour.

Bryson DeChambeau is reportedly set to follow for the second event of the series, which starts in Portland later this month, while Patrick Reed and Rickie Fowler are also said to be ready to sign up.

Ian Poulter, Sergio Garcia and Lee Westwood are among the other players who will tee off in the first LIV Tour event at Centurion Golf Club on Thursday.

Class was in session @McIlroyRory carded a final round 61 en route to victory at the 2019 @RBCCanadianOpen.#TOURVault pic.twitter.com/vt5Og33Iai
— PGA TOUR (@PGATOUR) June 8, 2022

McIlroy has made it clear he is committed to the PGA Tour and will defend his Canadian Open title this week.

The four-time major champion says he would rather compete against the best players in the world than be tempted by wherever he could maximise his earnings.

"I think my stance on it has been pretty clear from the start. It's not something that I want to participate in," said McIlroy.

"I certainly understand the guys that went and understand what their goals and their ambitions are in their life, and I'm certainly not knocking anyone for going.

"It is their life. It is their decision. They can live it the way they want to, but, for me, I want to play on the PGA Tour against the best players in the world.

"I was speaking to a few people yesterday and one of the comments was any decision that you make in your life that is purely for money usually doesn't end up going the right way.

"Obviously, money is a deciding factor in a lot of things in this world but if it is purely for money, it never seems to go the way you want it to, and I've had that before a couple of times before in my life.

"There are other things that are a part of it too, but it is a weird time in professional golf. I said it a couple of weeks ago, we are just going to have to see how this season plays out, and if any other guys do decide to go another direction than the established tours, see what the consequences are.

"For me right now, I can only speak personally. It is not something I envisage ever doing and I'm happy playing on the PGA Tour. I have a nice schedule, but I can pick for myself.

"I can spend a lot of time at home with my family if I want to, prioritise the majors and there is nothing about my schedule or my life or my earnings or anything that I would change."