Justin Thomas announced that he and caddie Jim "Bones" Mackay have parted ways after two-and-a-half years together.
Mackay and Thomas joined forces in the fall of 2021. Less than one year later, Thomas won his second PGA Championship, this time at Southern Hills in Tulsa, Oklahoma.
However, Thomas has not fared as well of late, falling to 28th in the Official World Golf Rankings. This season, he's missed the cut at the Genesis Invitational and The Players Championship, and he's also coming off a T-64 at the Valspar Championship.