Arnold Palmer — the pants-hitching, chain-smoking son of a greenskeeper who helped transform golf from an elite country club pursuit in to a sport for the masses, winning every major honor the game has to offer along the way — died Sunday at age 87.

Alastair Johnson, chief executive of Arnold Palmer Enterprises, told The Golf Channel — which Palmer co-founded, among his many successful business enterprises — that Palmer died Sunday afternoon from complications of heart problems. (The Golf Channel is a unit of the NBC Sports Group.)

“We are deeply saddened by the death of Arnold Palmer, golf’s greatest ambassador, at age 87,” the USGA said Sunday night. Multiple reports said he died in Pittsburgh, near his lifetime home of Latrobe, Pa.