When you're in contention to win a DP World Tour event the last thing you want to do is get off to a nightmare start with a double bogey.
That's exactly what happened to Scot Ewen Ferguson on 24 September when he was playing the final round of the French Open at Le Golf National.
But what made his double bogey worse was the fact that he putted his golf ball into the water.
At the time, he was tied at the top with England's Jordan Smith on 13-under.
He had found the rough on the right side of the 419-yard par-4 opener and did extremely well out of the fescue, sending his approach to the high side of the green.
Faced with a treacherously long putt across the green, the 27-year-old confidently made a stroke to the back left pin.
And then he watched with horror as his golf ball slowly but surely trickled into the water. Ouch.
The commentary team summed up the moment perfectly: "Steady, steady. You know, this is how easy it is to putt it into the water! I can't believe what I've seen."
Watch the moment here:
Ferguson went on to find the water at the very next hole and ultimately finished T-10 after a final round of 76. He earned €54,700.81.
Ryo Hisatsune went on to claim the victory, surging past the field with a final round of 66 to win by two strokes from Smith and Jeff Winther.
Hisatsune is the first Japanese golfer to win in Continental Europe in more than 40 years.
Ferguson was also involved in an interesting moment earlier in the week when he revealed a golf punter had sent him an angry message on Instagram after ruining his best.
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