Greiner was coming off a successful two-tournament fill-in stint with Justin Thomas, helping him win the RBC Heritage. Previously, Greiner was the longtime looper of Max Homa.

Morikawa had brought in Joe Greiner, fresh off a win with Justin Thomas, as his new caddie in April, making their debut at the Truist Championship. However, just months later, Morikawa parted ways ...

Short Tenure, Long Questions Morikawa’s tenure with Greiner began in April, shortly after Greiner ended his own six-year run with Max Homa–and even caddied for Justin Thomas during his RBC ...

Greiner quickly found a new bag, joining two-time major winner Collin Morikawa, who parted ways with J.J. Jakovac, the only caddie of his career in late April. After making five-of-five cuts with ...

Greiner quickly found a new bag, joining two-time major winner Collin Morikawa, who parted ways with J.J. Jakovac, the only caddie of his career in late April. After making five-of-five cuts with ...

Morikawa, who is ranked No. 5 in the world, made five cuts with Greiner as his caddie but tied for 50th at the PGA Championship and finished T23 at the U.S. Open.

DETROIT — Collin Morikawa is making another change on the bag this week. The two-time major champion has split with caddie Joe Greiner ahead of the Rocket Classic at Detroit Golf Club. Morikawa ...

After just five tournaments together - with five made cuts - Morikawa decided it was time to move on from Greiner, who left Max Homa's bag just a few days before the start of the Masters in April.