Justin Thomas has announced that caddie Joe Greiner will not be taking on the role as his permanent caddie, despite their recent triumph at the RBC Heritage.

Thomas clinched his first PGA Tour victory in nearly three years at Harbour Town, edging out Andrew Novak in a playoff after both finished 17-under-par for the tournament. This win came after Thomas enlisted Greiner for the Masters when his regular caddie, Matt "Rev" Minister, sustained an injury.

Greiner had parted ways with his long-time partner and close friend Max Homa just before the year's first major, with the American experiencing a dip in form in 2025.

The temporary partnership with Greiner proved successful, culminating in a win last Sunday. However, the future of Thomas's caddie arrangements remained uncertain until he spoke to SiriusXM PGA TOUR Radio on Monday.

Thomas confirmed that Minister would resume his duties once fit again after pocketing £2.7m at the RBC Heritage. "We all knew that going in – it was very much a fill-in situation.

"We were so lucky that Joe was available until Rev got healthy. I love Joe to death, but I'm very excited to have Rev back."

Thomas expressed his appreciation for Greiner's work during his time as his stand-in caddie, particularly during the critical moments at Harbour Town that led to their victory.

"It's great. We've had a lot of fun," Thomas expressed to the media. "I think we -- it's hard because it's -- I always -- have always thought caddies are in a tough spot already and kind of like a damned if you do, damned if you don't situation, let alone when it's the second week he's ever caddied for me.

"He knows I'm playing well, and he knows that I feel the same way. So he's wanting to help but also trying not to over caddie, and it's tough. But he's doing a great job. It's more fun than anything just because he's got a great personality and sense of humor, where I can make fun of him."

Greiner and Homa's split took place earlier this month, following a 10-year partnership that saw them claim six PGA Tour titles. "Joe and I made memories for a lifetime, and can't be more thankful for all the hard work. We have parted ways, and it will be sad to see him go," Homa said when announcing the split.

After a rough patch of five consecutive missed cuts, Homa regained his form at the Masters, managing to play through the weekend at Augusta National and securing a 12th place tie. He then achieved a 70th place finish at the no-cut event held last week in South Carolina.