It's a game of mistakes.
If we count misplaced or intercepted passes, less than perfect first touches, tackles that inadvertently give the ball back to the oppo, headers that go straight up or don't find the intended man, flicks that find no-one, corners or crosses that rip across the box into touch, shots that are saved or miss the target, players straying into offside positions, runs that lead to nothing, and god knows how many other different errors .............. then most outfield players could be said to make, what, 5, 10, 15, 20, 25 "fuck ups" a game ?
A young keeper collides with a defender, after a near-exemplary run of performances in a defence that has conceded fewer goals than all bar one team in the division, and a load of posters say "he's shit and we knew it all along".
Sigh.