It's such a psychological and mental game, golf, that the smallest wrong thing at the wrong time can distract you from what you're trying to achieve.

I'd been told there are 10 difficult holes and eight impossible ones. I'm still trying to work out which the 10 difficult holes are.

In my case what happened next in 1999 was that I fell apart over that back nine. When I saw I was in genuine contention that year I felt like throwing up. That remains probably the most nervous I've ever been on a golf course.

Golf is difficult to get your personality over because you are such a bottle of concentration.

My dad said: 'It looks like you'll be world No.1 in a few hours and I wanted to be the first to say congratulations.

You don't win tournaments by playing well and thinking poorly.

The Singapore Open is the flagship event of the Asian Tour, it is a massive event and it is being played in a great place. I love coming here and it is good to be back.