Golf's four major championships have hinted that they might change the rules for players who take part in the LIV golf tournament, according to golf writer Bob Harigh. He told Bloomberg's Leigh-Ann Gerrans and Tom Mackenzie that if players were excluded from the majors, they would miss out on earning world ranking points, and may see their rankings decline. Harigh, who has written a book on Tiger Woods and Phil Mickelson, was speaking to Bloomberg Radio from the Open in St Andrew's. See omnystudio.com/listener for privacy information.