Ken Brown
BBC golf commentator
Despite his recent wobbles Tiger has an absolutely classic golf swing.
He is the best golfer in the world because he has the most effective and efficient swing although it's not as reliable as it used to be.
His arms are like the spokes of a giant wheel rotating around the hub of his head - which hardly moves throughout his swing despite the fact his club reaches speeds of 120mph.
This creates incredible centrifugal force (the force that pushes you to the side of the car when you drive round a bend) which is where his power comes from.
