The Collin Morikawa-Joe Greiner experiment is over after just five tournaments. The world No. 5 is using a friend on the bag at the Rocket Classic.

Morikawa hired Greiner after parting ways with Jakovac following the RBC Heritage in late April. Greiner, who was Max Homa’s longtime caddie, worked a couple tournaments filling in for Justin Thomas’ ...

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 ...

Morikawa linked up with Greiner in April. Greiner was coming off a successful two-tournament fill-in stint with Justin Thomas, helping him win the RBC Heritage.

Greiner split with Max Homa in late March and was an 11 th -hour replacement on the bag for Justin Thomas at the Masters.

Collin Morikawa first faced some heat in April when he announced the split with long-term caddie J.J. Jakovac. The World No.5 golfer soon hired Joe Greiner, who worked with Max Homa until early April ...

Justin Thomas playfully teased his good friend and fellow golfer Max Homa in his Instagram comments after Homa finished 5th ...

Collin Morikawa is in the market for a new caddie -- again -- after parting ways with Joe Greiner ahead of this week's Rocket Classic.

Max Homa has been struggling for form this season and his world ranking has plummeted as a result, with the American looking ...

Morikawa has yet to name a permanent caddie but will have a notable name on his bag during a crucial period of the season ...

Greiner then went on to sub for the injured Matt Minister to caddie for Justin Thomas at the Masters and the RBC Heritage, which Thomas won, before joining forces with Morikawa.

Though Greiner was well‑regarded as the former trusted looper of Max Homa and temporary stand‑in for Justin Thomas (helping JT win at the RBC Heritage), his results with Morikawa never quite ...