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.

Post-Homa, Greiner snagged a temporary gig with Justin Thomas, aiding the world No. 4 in clinching his first PGA Tour victory in three years at the RBC Heritage.

The major news heading into this weekend's Rocket Classic was the surprise split of two-time major winner Collin Morikawa and caddie Joe Greiner. After just five tournaments together - with five ...

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 ...

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.

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 ...

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 ...

Collin Morikawa’s caddie change reminiscent of 1 stunning past switch By: Josh Schrock At the Rocket Classic, Morikawa made two changes after a scruffy first round. He switched to a one-of-one ...

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.