Yeah it doesn't take too long because he's a shambles and will constantly make these sort of howlers as he has displayed throughout his short time here.
Lads, I get it, my user name is De Gea, it's hilarious. But if you're biggest defense of Onana is go go after DDG and his wages then I think that says it all. Particularly when even his biggest fans (like me) agreed it was time for him to move on. I just don't think Onono and his comedy goalkeeping should have been the answer.
He's always going to be a weakness for this team knowing he can drop an absolute clanger at any minute with a penchant for doing it in the biggest moments. Then just look at his basics and the amount of saveable shots he just let's by him.
I'd take any of Barthez, Bosnich, Howard, Kusczak, Van der Gouw, Foster or Lindegaard over this clown.