Star golfer Jordan Spieth had a hole he'd like to forget on Friday a The Northern Trust - and unfortunately it included a mental error that will haunt him for some time.
Spieth, who had a nice round going with five birdies and one bogey, triple-bogeyed the 18th hole - giving back three strokes. One of those strokes came on a one-handed putt he meant to just tap into the hole.
Instead, he tapped it just a few inches. It's quite a way to compound a mistake.
Check it out below - it's the kind of putt you're never forced to hit during a Sunday round with your buddies. It's "gimme" territory.
Obviously, this is not how you want to end your round.
Spieth shot a 70 to finish one-under for the day - and he's now two-under for the tournament. At the moment, he's eight shots off the lead and two shots clear of the cut.