Danny Willett is heading to the final hole of the Masters with a two-stroke lead.

No one saw this coming.

Jordan Spieth made the turn with a commanding five-shot advantage, seemingly a shoe-in for his second straight green jacket. But the 22-year-old Texan totally fell apart in less than an hour, dumping two balls in the water at No. 12 for a quadruple-bogey 7.

Willett, a 28-year-old Englishman, birdied the 16th hole and made a crucial up-and-down at the 17th to protect his lead.

He is at 5 under overall and two shots ahead of Dustin Johnson. Lee Westwood and Spieth are three shots back.