'If you designed the perfect golfer - it'd be Dustin Johnson'

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New world number one Dustin Johnson has all the ability to remain at the top of the game according to his coach Claude Harmon. Johnson's victory at the Genesis Open in California saw him move to the top of golf's rankings for the first time. Harmon believes Johnson has all the attributes to make the 'perfect' golfer and his improved lifestyle away from the course has helped the American fulfill his potential. (Image: Dustin Johnson with his coach Claude Harmon III during practice for the Abu Dhabi HSBC Championship. Credit: Getty Images)