Rickie Fowler's putt was swallowed by a sprinkler head

Rickie Fowler began his final round at PGA National Sunday with a four-shot lead, but he gave a stroke back to the field on the fourth hole with a very unusual bogey. Fowler's approach shot ended up over the green in a collection area, and he elected to putt his birdie attempt up the slope.

There was just one problem - a sprinkler head was in his line, and he accidentally drained his putt in the wrong hole.

https://twitter.com/PGATOUR/status/835941166747017216

Fowler carded a bogey, then gave two more shots back with a double-bogey at the sixth. The slide put Fowler just three shots ahead of a group of six players at 8-under.