I've always been a big thinker that the more international competition that we create through sports the better relationships we'll have with countries.

There's some good news, too, and the good news is that the players [finally] have become more aware of the fact that we [in golf] need sponsors, and we need the good will that is created by the players being, let's say, cooperative with the sponsors - meaning friendly.

I have a tip that can take 5 strokes off anyone's golf game. It's called an eraser.

Don't be ashamed to play safe.

The secret of concentration is the secret of self-discovery. You reach inside yourself to discover your personal resources, and what it takes to match them to the challenge.

Many people don't know that I experienced a blood clot caused by deep vein thrombosis, or DVT, which is when a blood clot forms in a deep vein in the body, often the leg or thigh. I'm fortunate that my DVT was diagnosed and treated before it led to something even more serious and that's why I encourage people to talk to their doctor if they think something is wrong. I've teamed up with Janssen Pharmaceuticals to raise awareness about blood clot prevention and treatment.

Concentration comes out of a combination of confidence and hunger.