LAKE FOREST, Ill. — Jason Day’s longtime coach is no longer his caddie.

In a surprising move, Day said Wednesday he has parted ways with Colin Swatton for at least the rest of the year, though he will keep him as the only coach he has ever had. It was the third split this year involving top players and their longtime caddies. Phil Mickelson and Jim “Bones” Mackay split after 25 years, while Rory McIlroy parted with J.P. Fitzgerald after nearly a decade.

“I never wanted it to turn into a toxic relationship,” Day said. “I love him too much to have him not in my life.”

Swatton was as much a life coach as his golf instructor and caddie.

Day was a 12-year-old in Australia who got caught up in drinking and fighting after his father died.