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Four years after putting down Phil Mickelson’s bag for the last time, Jim ‘Bones’ Mackay is making a return to the PGA Tour. 

He is the new, full-time caddie for major champion and former world No.1 Justin Thomas. 

Mackay confirmed the news to the Golf Channel, revealing that he is taking over from Thomas’ long-standing bagman Jimmy Johnson.

“It came out of left field very recently,” said Mackay. “It was an incredible phone call to get and I said yes.

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“I have just tremendous respect for [Thomas] as a person and a player,” 

Mackay spent a quarter of century caddying for Phil Mickelson before standing down in 2017 to take up a new role as an on-course reporter for NBC Sports and the Golf Channel. 

He has previously caddied for Thomas on a stand-in basis, first stepping in to the void when Johnson was injured during the 2018 Sony Open.

He also filled in on a couple of occasions in 2020, first at the Memorial Tournament and again at the WGC-FedEx St Jude Invitational, which Thomas won by three shots.

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Johnson, recently inducted into the “Caddie Hall of Fame”, had been on Thomas’ bag since the American’s rookie year in 2015 and helped him reach world No.1 in 2018, less than a year after he won his maiden major. 

It is understood that Mackay will continue his media role in weeks that Thomas’ ‘off’ weeks.


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Michael McEwan is the Deputy Editor of bunkered and has been part of the team since 2004. In that time, he has interviewed almost every major figure within the sport, from Jack Nicklaus, to Rory McIlroy, to Donald Trump. The host of the multi award-winning bunkered Podcast and a member of Balfron Golfing Society, Michael is the author of three books and is the 2023 PPA Scotland 'Writer of the Year' and 'Columnist of the Year'. Dislikes white belts, yellow balls and iron headcovers. Likes being drawn out of the media ballot to play Augusta National.

Deputy Editor

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