PGA of America CEO Derek Sprague said on Thursday he will apologize directly to Rory McIlroy and the rest of Europe’s Ryder Cup team and their families for the abusive behavior they suffered from some spectators during last week's contest.

The apology follows Europe's 15-13 victory over the United States at Bethpage Black, where the players were subjected to taunts and personal abuse by fans, who also refused to stay quiet while players were taking their shots.

A master of ceremonies stepped down from her role after joining in with a vulgar chant aimed at McIlroy, while the Northern Irishman's wife Erica had a beer thrown in her direction by fans.