Manchester United were embarrassed as they exited the Carabao Cup in the second round against the League Two side Grimsby Town on penalties.
The underdogs bullied the 13-time Premier League champions, racing into a two goal lead inside half an hour at Blundell Park.
Shell-shocked United scraped their way back through late strikes from Bryan Mbeumo and Harry Maguire.
Grimsby kept their cool to win 12-11 on penalties as Matheus Cunha and Mbeumo faltered from the spot.
Manuel Ugarte, Tyler Fredricson and Diogo Dalot put on miserable performances but Andre Onana was yet again the worst player on the pitch.
It is beyond humiliating that an international goalkeeper keeps repeating the same errors, and yet the club still entrusts him with the number one role.
Onana was dropped from the first two Premier League games of the season, a decision that now looks like a rare stroke of foresight.
Andre Onana must be forced out now
Handed his first appearance of the season, Onana may well have ensured the fans never want to see him in a United shirt again.
His first test of the campaign arrived early and he failed miserably, beaten far too easily at his near post.
Ugarte and Amad Diallo collided in the build-up to gift the ball to the opposition.
Ayden Heaven and Fredricson were too naive to give ample space to the Grimsby attackers.
Even then, Onana had the chance to rescue his teammates with a routine save but instead watched the ball slip past him with embarrassing ease.
The second goal was a usual reminder to United that their goalkeepers cannot command their box and are too weak to handle any physics battles.
The 29-year-old launched himself into the air like Superman, completely missed the punch, and lay sprawled on the turf as Tyrell Warren nodded home with ease.
The penalty shootout only deepened his humiliation.
He touched five spot-kicks yet saved just one, a shocking return from twelve attempts.
He ended the game with zero high-claims, zero punches and only two of seven accurate long balls.
Onana has been repeating the same catalogue of errors for two straight seasons, stubbornly refusing to learn from his mistakes.
He does not belong at a top-level club and certainly not at one with the stature of Manchester United.
INEOS must act ruthlessly and sell him this weekend, even if it means taking a financial hit under Profit and Sustainability Rules.
If no buyers emerge, the club should terminate his contract.
Any United manager (Ruben Amorim could be on his way out) who dares to keep picking him is asking to be sacked.
INEOS should also fire the scout who thought Onana will be an upgrade to David de Gea.
Stats from Fotmob.com