In the second significant player-caddie split of the summer, Rory McIlroy has fired his caddie of almost a decade.
The surprise decision leaves the 28-year-old needing a new caddie for the Bridgestone Invitational, which starts on Thursday in OH, and the US PGA at Quail Hollow next week.
It appears the major at Royal Birkdale could be the last we see of Fitzgerald working alongside McIlroy.
"But J.P. reminded me who I was and that helped and got me back in a positive frame of mind". I know that people think that he failed but Top 5 at a major championship is pretty good going.
Hiring Fitzgerald in 2008, the pair enjoyed remarkable success, including those four majors, reaching world number one, and securing the lucrative Race to Dubai and FedEx Cup accolades.
"JP did a great job", McIlroy later said, after recovering to one-over. The Dubliner was reported by Forbes to have earned $1.65 million past year from his role as McIlroy's caddie.
The news came Monday morning, a little more than a week after McIlroy tied for fourth in the Open Championship.
It is unknown if Diamond will be a long-term caddie solution for McIlroy. Fitzgerald's meticulousness has been called into question by his peers, some of whom believe the mistake at Birkdale was merely the latest error.
The news has been broked by Reuters who claim to have an inside source. Phil Mickelson just recently parted ways with his caddie after 25 years together. A childhood friend who grew up in the same Belfast suburb of Holywood, he is a fine player in his own right, having played with McIlroy in the Ulster youth team and represented the Irish senior team.
Diamond has been McIlroy's friend since both were kids in Holywood, Northern Ireland, and he served as best man at the McIlroy-Erica Stoll wedding in April.