FILE - In this May 17, 2015, file photo, Rory McIlroy, of Northern Ireland, tips his cap to the crowd as he walks up to the 18th green before winning the Wells Fargo Championship golf tournament at Quail Hollow Club in Charlotte, N.C. McIlroy hasn't won all year, and he split with his caddie after the British Open. In a year without a victory, how would he measure his season if he were to win the PGA Championship? (AP Photo/Chuck Burton, File)