OAKMONT, Pennsylvania (Reuters) -Rory McIlroy conceded on Tuesday that he did not know how hard it would be to stay motivated after completing a long-sought career Grand Slam at the Masters in April but hopes to hit the reset button in time for this week's U.S. Open.
McIlroy, speaking to reporters at Oakmont Country Club ahead of Thursday's opening round, has struggled since the Masters and will need to rediscover both his hunger and form off the tee if he hopes to be in the mix at the year's third major.
