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Collin Morikawa Ends Six-Year Partnership with J.J. Jakovac, Names Joe Greiner as New Caddie

Morikawa confirms veteran Joe Greiner as his new caddie, set to debut at next week’s Truist Championship in Philadelphia.

Image
Apr 19, 2025; Hilton Head, South Carolina, USA; Collin Morikawa tees off on three during the third round of the RBC Heritage golf tournament. Mandatory Credit: Jim Dedmon-Imagn Images/File Photo
AUGUSTA, GEORGIA - APRIL 12: Collin Morikawa of the United States passes his club to his caddie Jonathan Jakovac during the third round of the 2025 Masters Tournament at Augusta National Golf Club on April 12, 2025 in Augusta, Georgia.

Overview

  • World No. 4 Collin Morikawa has officially parted ways with J.J. Jakovac, his caddie since turning professional in 2019.
  • Joe Greiner, previously Max Homa’s caddie, will take over as Morikawa’s full-time caddie starting at the Truist Championship next week.
  • The Morikawa-Jakovac partnership achieved significant success, including two major titles and six PGA Tour victories.
  • Greiner briefly worked with Justin Thomas earlier this month after splitting with Homa, his longtime collaborator.
  • Morikawa has not won a tournament since the 2023 Zozo Championship and is seeking to rejuvenate his performance in the 2025 season.