Northern Ireland native won U.S. Open by eight strokes . Rory McIlroy says he is playing for himself , not the money . `` If anything it made me more determined to prove to people and myself that I was n't ... He says ` ` ' Morgan , '' he has swagger on the golf course .
Northern Ireland native won U.S. Open by eight strokes . Rory McIlroy says he is playing for himself , not the money . He says ` ` ' Morgan , '' he has swagger on the golf course .