It's the under-20 World Cup, you're representing your country - the game kicks off and the last thing you want to do is make a mistake.
So it's easy to feel sorry for this guy here. The Mali stopper Berthe made a horrible error less than 80 seconds into their match against the Mexico under-20s on Friday.
Upon receiving a back pass, Mali's keeper hooks a terrible clearance straight into the path of Bueno, and the Mexico striker sticks it away to put his nation one-nil up.
Hardly inspiring much confidence in his back four, Berthe does that classic goalkeeping stare - you know the one. The one you make after you've just dropped an absolute clanger.
Check out the video of Berthe's error - and thanks to 101greatgoals.com for getting the clip up first…