Manchester United fans were quick to vent their fury on social media.
Supporter @owenthfc_ posted: "Bayindir somehow even worse than Onana."
And @TheFergusonWay added: "I would sell Bayindir for a fistful of peanuts."
There was also criticism from @AidanWalshMUFC, who wrote on X: "The state of Bayindir, pathetic."
Football correspondents were also shocked by Bayindir's goalkeeping.
Manchester United reporter Samuel Luckhurst wrote: "Bayindir from a corner. Again. Hopeless. How he is starting ahead of Heaton, never mind Onana, is beyond me."
And football writer Henry Winter added: "Everyone been saying it. Manchester United need a reliable, durable goalkeeper. Onana unconvincing. Bayindir even less convincing, gifts Calafiori chance. Spent all this money to strengthen the attack but overlooked a glaring weakness in goal."