ATLANTA -- As Billy Horschel approached the 18th green in Sunday's final round of the Tour Championship at East Lake Golf Club, he couldn't help but wonder whether it was the last time he'd play with his good friend, Cameron Smith, on the PGA Tour.
Horschel and Smith both live in Ponte Vedra, Florida. They play golf together and go offshore fishing during their free time.
"If he happens to go, he would be the biggest loss in my mind because you look at his age and what he's accomplished," Horschel said. "Look at the person he is. He's a great kid and represents himself very well, and he does it the right way. If he happens to go, it would be the biggest loss because I'm biased. He's one of my best friends."
Smith, 29, is leaving the PGA Tour for LIV Golf, the new circuit announced Tuesday. Smith is No. 2 in the Official World Golf Ranking and won the 150th Open Championship at St. Andrews in July. Chile's Joaquin Niemann (the 19th-ranked player in the world), Harold Varner III (No. 46), Cameron Tringale (No. 55), Australia's Marc Leishman (No. 62) and India's Anirban Lahiri (No. 92) are also joining LIV Golf, which is being financed by Saudi Arabia's sovereign wealth fund.
LIV Golf said the six players will compete in its fourth event, which starts Friday at The International outside Boston.
"LIV Golf is showing the world that our truly global league is attracting the world's best players and will grow the game into the future for the next generation," LIV Golf CEO and commissioner Greg Norman said in a statement. "The best and the brightest continue to embrace the excitement and energy of LIV Golf and what we're building: a tangible league for team golf that will connect with new audiences all over the globe. We can't wait to tee off this week at The International and deliver another memorable event experience for fans."
Smith, from Australia, is the biggest loss for the PGA Tour. He is in the prime of his career, having won The Players in March and his first major championship at the 150th Open Championship. Smith is a six-time winner on the PGA Tour and a popular player among fans and fellow competitors.
"He's a good mate of mine," Australia's Adam Scott said. "I play a lot of practice rounds with Cam. I'll miss out on that. It's one less good player that I have to beat, though."
Smith told Golf Digest that his decision was both financial and schedule-related.
"[Money] was definitely a factor in making that decision, I won't ignore that or say that wasn't a reason," he said. "It was obviously a business decision for one and an offer I couldn't ignore.
"The biggest thing for me joining is [LIV's] schedule is really appealing. I'll be able to spend more time at home in Australia and maybe have an event down there, as well. I haven't been able to do that, and to get that part of my life back was really appealing."
Varner, in a statement posted on Instagram, thanked the PGA Tour, calling it a "life-changer" that allowed him to "make something out of my life."
But he said the financial lure of LIV was too hard to pass up.
"The opportunity to join LIV Golf is simply too good of a financial breakthrough for me to pass by," he said as part of the post. "I know what it means to grow up without much. This money is going to ensure that my kid and future Varners will have a solid base to start on and a life I could have only dreamt about growing up. It'll also help fund many of the programs I'm building with my Foundation. I'll continue to forge pathways for kids interested in golf. This note is a receipt for that."
Smith and Niemann, who was a wire-to-wire winner at the Genesis Invitational at Riviera in February, were automatic qualifiers for the International Team that will compete in the Presidents Cup at Quail Hollow in Charlotte, North Carolina, on Sept. 20-25.
PGA Tour commissioner Jay Monahan has suspended players for competing in LIV Golf tournaments without conflicting-events releases. Since the Presidents Cup is sanctioned by the PGA Tour, Smith and Niemann will be ineligible to play. It's a blow for the International team, which already figured to be a sizable underdog to the Americans.
International team captain Trevor Immelman is scheduled to announce his captain's choices Sept. 6. Hideki Matsuyama, Sungjae Im, Tom Kim, Corey Conners, Mito Pereira and Scott have qualified for the team. Immelman will add six players to the 12-man roster.
"All I can say is Trevor is as prepared as he can be for whatever," Scott said. "I really feel for him. He's been in a tough spot for quite a while. He's got a plan, and whichever one he has to go with, he'll go with it. It's just a fact that we are the underdogs and it's a stacked U.S. team, even with potentially some [of their] guys missing as well, just not at the 11th hour."
Pereira, who had a lead on the 72nd hole at the PGA Championship at Southern Hills and tied for third, will also head to LIV Golf at some point in the future, sources previously told ESPN.
U.S. team captain Davis Love III will also add six captain's choices on Sept. 7. Patrick Cantlay, Sam Burns, Justin Thomas, Scottie Scheffler, Xander Schauffele and Tony Finau have already qualified.