Surprising news on many levels, but Jimmy Johnson’s backup has been promoted to carry Justin Thomas’s bag. Jim Bones Mackay will be missed on NBC broadcasts where he’s become established as a reliable on-course reporting voice entrusted with some of the network’s biggest assignments.

First reported by Golf Central’s Twitter account:

After four years as an on-course reporter for NBC Sports and Golf Channel, Jim “Bones” Mackay will transition back to his original career and caddie full-time for Justin Thomas. https://t.co/NEVpR2gabb pic.twitter.com/y1ELThFbU3

— Golf Central (@GolfCentral) September 30, 2021