Jordan Spieth feared the US PGA Championship could be decided by a stroke of bad luck after completing his unsuccessful bid to become the youngest winner of a career grand slam.

Jason Day threw away his chance of a second US PGA title with "one crazy decision" according to six-time major winner Nick Faldo.

Brian Keogh takes a closer look at the world of caddies, the few who’ve made millions and the vast majority who live the jet-set lifestyle without the money, or the jet.