The Manchester United goalkeeper was at fault for two goals on the night as his side drew 3-3 against the Turkish side in Istanbul.
Erik ten Hag’s team now has to win against Bayern Munich in their last group game if they want to move onto the knockout rounds of the competition.
They looked like they would easily breeze through the game on Wednesday night after Alejandro Garnacho opened the scoring with a sweet strike before Bruno Fernandes scored a rocket from outside the box.
But the Turkish club fought back from two goals down on two separate occasions to ensure they are within a chance of qualifying.
Footage emerged after the game of a distraught Andre Onana after his two mistakes cost his team the victory.
André Onana was left devastated at full-time 😢#UCL pic.twitter.com/3KjvVgmLu7
— Football on TNT Sports (@footballontnt) November 29, 2023