It's the goal celebration every youngster dreams of.
You smash one into the net and you sprint off to the corner-flag and give it a massive knee-slide in front of your adoring fans.
It looks cool, it's emphatic and most of all, it's easy.
Or at least it should be.
You'd think a man of his goalscoring pedigree - over 150 strikes for club and country, including the winner in the Champions League final - would have no problem executing a knee-slide.
But you'd be wrong. The Dutchman fell came a cropper as his red thermal tights - apparently velcro-coated - produced such friction on landing that Robben was catapulted through the air before landing with an embarrassing bump.
Just look at the damage done to the poor man's knees - Mrs Robben will be reaching for the Dettol tonight.
Maybe stick to a handshake next time, eh?
Here's a quick reminder of how it should be done.
- Sports & Recreation
- Arjen Robben
- Eintracht Braunschweig
- Bayern Munich