Stewart Cink eventually beat out Watson in a four-hole play-off for the title, but the latter's play, which had captured the hearts and minds of the sporting world, came so close to yielding victory in regulation.
The five-time Champion Golfer, looking to tie Harry Vardon for the most Open victories ever, held a one-stroke lead heading into the final hole, but a bogey left Watson in a play-off with Cink on a thrilling final day.
Hear from the contenders on The 138th Championship here, with The Story of 2009 documentary podcast.