Phil Mickelson heads into the next phase of his career with a new caddie on a course marking its comeback from devastating floods in West Virginia.

Mickelson will have brother Tim Mickelson on his bag starting Thursday at the Greenbrier Classic in his first tournament since parting ways with his caddie of 25 years, Jim “Bones” Mackay.

Tim Mickelson, the former Arizona State coach who is the agent for former Sun Devils star Jon Rahm, will be his older brother’s caddie for the rest of the year. Phil Mickelson said Wednesday the new arrangement brings a comfort level that could help in game.

“Maybe he gets me a little bit more relaxed and takes a little bit of pressure off me and maybe I’ll play my best that way,” Phil Mickelson said. “But there’s no replacing Bones.”