After Justin Thomas’s full-time caddie, Matt Minister, had to miss the Masters with a back injury, Greiner stepped in to caddie for Thomas. The part-time stint on the bag of Thomas was a short but successful one. The 31-year-old won in his second start with Greiner at the RBC Heritage in a thrilling playoff finish at Harbour Town.

Collin Morikawa will have a new man on the bag next week when he tees it up at the 2025 Truist Championship in Philadelphia. Morikawa on Tuesday announced a split with long-time caddie JJ Jakovac with Colt Knost reporting that Morikawa's new caddie will be Joe Greiner.

The shuffle is a big one for the two-time major winner, who has worked with Jakovac since he turned pro in 2019. He has been Morikawa's caddie for all six of his win on the PGA TO