Rory McIlroy has shown grit, worked on his putting and given himself chances to win. Now the world No 2 hopes to put everything together and win his second US Open in three years.

McIlroy, who took his first major title two years ago at the US Open at Congressional, goes into next week's 113th US Open at Merion trying to find consistency after a season that has tested his determination and perseverance.

"It has been a little bit of a frustrating year," McIlroy said. "It seems like every time that I've got a bit of momentum, I take two steps forward and then take one step back. But I'm getting there. It's very close."