Watch: Rory McIlroy says Oakmont is 'probably' toughest US Open course
Rory McIlroy says his recent loss of form has helped him realise he needs to "get my stuff together" at this week's US Open after struggling for motivation following his career-defining Masters win.
Northern Ireland's superstar golfer became just the sixth man to complete the career Grand Slam with his Masters victory in April, but he has since struggled, finishing tied 47th at last month's US PGA Championship before missing the cut by 12 shots at last week's Canadian Open.
While the 36-year-old said it was important for him to savour his Augusta triumph, he added he wants to move on at Oakmont Country Club as he bids for a second US Open title.
"I think it's trying to have a little bit of amnesia and forget about what happened six weeks ago [at the Masters], then just trying to find the motivation to go back out there and work as hard as I've been working," said 2011 US Open champion McIlroy.
