Phil Mickelson and his longtime caddie Jim ‘Bones’ Mackay are parting ways after 25 years together.

In one of the most stunning announcements in the game’s recent history, Phil Mickelson and Jim “Bones” Mackay have split after 25 years.

The duo, famous and entertaining for their loquacious deliberations before shots, announced the separation with statements Tuesday. The two walked stride for stride for all but one of Lefty’s 42 PGA Tour titles, including five major championships, plus multiple triumphs in the Ryder Cup and the Presidents Cup.

“Our decision is not based on a single incident. We just feel it’s the right time for a change,” Mickelson said. “Bones is one of the most knowledgeable and dedicated caddies in the world. He is always prepared and has the ability to make decisions in pressure packed situations.

“Bones is without a doubt one of the most thoughtful people that I have ever known. The next player to work with him will obviously be very lucky.”

It is unknown who that next player will be. What is known is that Mickelson’s brother, Tim, will be on the bag the rest of the year. He replaced Bones in the second round of this year’s World Golf Championships-Mexico Championship when Mackay became ill. Mackay was back on the bag for the final two rounds.

“I will always be grateful that I was around to witness so much of Phil’s career,” Mackay said. “When Phil hired me in 1992, I had one dream: to caddie in a Ryder Cup. Last year, at Hazeltine, Phil played in his 11th straight Ryder Cup. It was so cool to have a front row seat.

“I wish Phil nothing but the best. His game is still at an elite level, and when he wins in the future (definitely the Masters), I will be among the first to congratulate…