Rory McIlroy’s frustrating final round at the PGA Championship boiled over with an angry exchange with a fan after a “U-S-A!”

Rory McIlroy and others had complained about the setup at Aronimink in first two rounds, but Round 3 is proving easier and a 66 put McIlroy squarely in the mix.

Rory McIlroy’s frustrating final round at the PGA Championship boiled over with an angry exchange with a fan after a “U-S-A!”