Published Wednesday, 13 June 2012
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The 23-year-old will be out to defend his first major championship crown at the Olympic Club in San Francisco this week.
Only one player has managed that feat in the past 61 years, American golfer Curtis Strange, and McIlroy believes the best way to go about it is to play aggressively.
"I didn't expect to be saying that before I got here," said the Ulsterman, who pitched the ceremonial opening ball at the Houston Astros v San Francisco Giants game.
"I thought there would be a lot more irons off tees
"I reckon I'm going to use my driver eight or nine times. I'm coming in with the mindset that I'm going to attack the golf course and play aggressively when I can.
"Obviously you have to be smart, but you've got to take your chances around here. It gives you a few opportunities where you can make birdies.
"The rough is not as bad as maybe in previous years. You can get away with some tee shots. Really you just need to know your way around and know where you can miss it.
"People say it's fiddly, but I'm going to try to take the course on. If you make some bogeys you can hide them with a few red numbers (birdies)."
McIlroy had been on a poor run of form lately and missed three consecutive cuts before bouncing back at the St Jude Classic in Memphis.
He was tied for the lead at last week's event before going into the water and double-bogeying the final hole - yet he sounds upbeat ahead of the title defence.
"It was a really good idea that I went there," said Rory, who has been practising with compatriot Graeme McDowell and England's Lee Westwood.
"I definitely feel more comfortable about my game than if I hadn't played.
"I'm feeling ready to go. The missed cuts were maybe what I needed - you've still got to work hard, put the time and effort in.
"It's only natural you just start to question yourself and question your game a little bit, but I had a chance to win in Memphis and until the disappointing last few holes I felt like I played some really good golf."
McIlroy will play the opening two rounds on Thursday and Friday with McDowell and Westwood.