PGA of America president Don Rea Jr., who initially compared vitriolic comments at the Ryder Cup with what could be heard at a youth soccer game, finally apologized Thursday in an email to the 30,000-plus golf professionals he was elected to serve.

PGA of America chief executive Derek Sprague will apologise to Rory McIlroy and his wife Erica after the European team were subjected to abuse at the Ryder Cup that "crossed the line".

"It's unfortunate that people crossed the line last week," Sprague told the Golf Channel. "There's no place for that at the Ryder Cup, no place for it in the game of golf and we are not happy with wh...