A week can be a long time in any sport. In golf, it can define a whole career - just ask surprise major champions Ben Curtis, Shaun Micheel and Todd Hamilton.
Twelve months ago, to the very day, Rory McIlroy cut a forlorn figure as he addressed the world's media ahead of the 2014 BMW PGA Championship at Wentworth, fumbling through a poorly pieced-together reasoning for breaking up with tennis ace Caroline Wozniacki.
McIlroy was, at that point, winless in 18 months. Relationship issues, off-course differences with his management and a much-scrutinised switch from Titleist to Nike equipment seemingly rendered him ineffective from tee to hole.