The two-time major winner, who had pledged loyalty to the PGA Tour, is among 42 golfers set to play in the first event for a series whose major shareholder is Saudi Arabia’s sovereign wealth fund.
Dustin Johnson, who in February pledged his loyalty to the U.S.-based PGA Tour, will be the top-ranked golfer in the inaugural event of a Saudi-backed rival tour next week at the Centurion Golf Club outside London.