Onana has been criticized for weeks for his performance. Altay Bayindir is a good goalkeeper. Erik ten Hag should give him a chance. Altay Bayindir can perform better than Onana these days.
Galatasaray are becoming a better team day by day. After 3 weeks I have no doubt that we will see a better Galatasaray in the match against Bayern Munich. It's easy to say that already. I wish we had won against Copenhagen, then I would have been braver about our chances of qualifying for the next round.
I dont know many more times Onana needs to make a mistake so that he gets removed from the first lineup. With all of these mistakes i dont think the bench keeper can do worst. He can do only better. I dont know why Man Utd still hasnt sacked Ten Hag after all of this losses.
Onana's mistake was huge and was definitely the decisive situation in the game, but I think even then Casemiro is a professional for over a decade who should have known that his tackling should definitely not be done like that. Onana messed it up and Casemiro messed the mess up. He made it even worse. But yes, I don't know in how far ten Hag is involved in transfer decisions and whether he has a lot to say in the club when it comes to player transfers, but there have been some questionable decisions in the recent past.