It happens and it has happened to Alex Runarsson this evening at the Emirates.
The 25-year-old had a straight forward shot to contend with, it was the perfect height and at a very comfortable speed and yet somehow he managed to fluff the catch and basically dropped the ball into the net.
It was embarrassing and the really sad thing is that it is no real big surprise, he has looked dodgy all evenings.
We have to hope Bernd Leno does not get injured.