Jordan Spieth appeared on course to secure back-to-back Masters titles, only to see his disappear with a dramatic collapse along Augusta's back nine.
The defending champion bounced back from a blemish at the fifth to reel off a run of four consecutive birdies and reach the turn with a five-stroke lead, but opened the door for the chasing back with dropped shots at 10 and 11.
Spieth's seven-and-a-half round stint as Masters leader was under threat when the world No 2 misjudged his approach in to the par-three 12th and ended up in Rae's Creek, but worse was to follow after taking his penalty drop.
A chunked chip found the water for a second time, while his next attempt - his fifth shot - missed the green and ended up in the greenside bunker.
Although Spieth recovered to get up-and-down and hole his six-foot putt to card a quadruple-bogey seven, his errors saw him slide down the leaderboard and hand Danny Willett the advantage as the Englishman went on to claim Masters victory.
Click on the video above to see the drama for yourself!