Joe Greiner split with Max Homa earlier this year and was hired by Morikawa shortly after. But now Morikawa is making another caddie change.

Morikawa is currently No. 5 in the Official World Golf Ranking, but he hasn't won a PGA Tour title since the 2023 Zozo Championship. And that's the 28-year-old's lone victory since claiming the claret jug nearly four years ago.

Collin Morikawa is once again making a change on the bag ahead of this week's Rocket Classic in Detroit. After parting ways with his longtime caddie -- J.J. Jakovac -- in late April, Morikawa has now ended his partnership with Joe Greiner,