McIlroy, a 20-year-old from Northern Ireland, said Wednesday at the HongKong Open that he will be competing against stronger fields in the UnitedStates, which should make him a better golfer.
He already is No. 17 in the world, despite turning pro only two years ago.
McIlroy made in the cut in all four majors this year, tying for third at thePGA Championship in August. As a U.S. member, he will have to play 15 times nextyear, although that includes the majors and World Golf Championships.