They poured scorn on Manchester United from the stands and baited them with inflatable haddocks. They revelled in the latest humiliation of this once great football club and a famous night for Grimsby Town.
Oh, how the locals at Blundell Park loved this and rightly so. What a night for the League Two club and a deserved win in an incredible Carabao Cup tie; one that will go down in folklore in this corner of Cleethorpes.
But what of United, dismal, wretched United? Where do they go from here? The optimism of a summer spent rebuilding and spending big under Ruben Amorim had already begun to ebb after taking just one point from their two opening Premier League games, and now this.
A defeat every bit as humiliating as United suffered on their last appearance in the second round of this competition 11 years ago when Louis van Gaal’s side were humbled 4-0 by League One MK Dons, and arguably any in the club’s modern history.
United’s first-ever cup defeat to fourth-tier opposition will take its place alongside Bournemouth, York City and Southend in the hall of shame.
Yes, Amorim made changes but he still started with a team that cost £400million to put together, even with two academy products in Kobbie Mainoo and Tyler Fredricson who cost nothing.
Grimsby celebrate after securing a famous win against Man United on penalties

Bryan Mbuemo is dejected after missing in the shootout as United were knocked out

United goalkeeper Andre Onana endured further frustration as he struggled

The exit to Grimsby represented another blow for United manager Ruben Amorim

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The painful truth for United and their suffering supporters is that Grimsby deserved their win. A team so far out of United’s league that the two clubs had not met for 77 years before this.
United deserve some credit for recovering from two goals down to force a marathon penalty shootout as Bryan Mbeumo scored his first goal for the club since a £71million move from Brentford before Harry Maguire headed an 89th-minute equaliser.
But after Andre Onana looked to have redeemed himself with a one-handed save from Clarke Oduor, two of United’s three big summer signings failed from the spot as Amorim spent the entire shootout hunkered down in the dugout unwilling to watch.
Grimsby goalkeeper and boyhood United fan Christy Pym saved from Matheus Cunha. Then as we moved into a second round of penalties after both keepers converted, Mbeumo sent the 26th attempt against the underside of the bar and Blundell Park into delirium.
As United look to clear the decks of fringe players before Monday’s transfer deadline, Alejandro Garnacho, Antony, Jadon Sancho, Rasmus Hojlund and Tyrell Malacia probably can’t wait to get out the place and away from this never-ending circus as fast as possible.
And then there’s Mainoo who got the chance he wanted here at probably wishes he hadn’t.
If Mainoo’s first game of the season turns out to be the last of a United career that promised so much, then what a depressing way to go out.
It felt like a big night for Sesko too on his full debut after a big-money move from RB Leipzig and two rather subdued appearances off the bench against Arsenal and Fulham. The Slovenian was largely anonymous and then curiously chose to be the last outfield player to step up in the shootout. Not exactly the kind of confidence you expect from a £74m striker.

Charles Vernam celebrates after giving Grimsby the lead in their clash against United

Tyrell Warren added to Grimsby’s lead when he netted in the 30th minute of the game
Meanwhile, Onana’s summer has been disrupted by a hamstring injury that allowed Altay Bayindir to take over as No.1, however temporarily, and speculation over his future has not been helped by the club’s attempts to sign Senne Lammens from Antwerp.
With Bayindir struggling in the opening two games, particularly under set-pieces, this was Onana’s chance to reassert his authority and yet he was picking the ball out of the net twice in the opening half an hour.
Could he have done better with the first goal? Possibly. United had come under early pressure and struggled to weather it when Darragh Burns switched played from right to left.
Charles Vernam controlled it with one touch and still had enough time to size up a shot which he rifled inside the near post as Onana failed to keep it out.
At that point, Cameron Gardner had already headed straight at the United keeper who had also been forced to turn Vernam’s corner over his own bar, looking every bit as uncomfortable as Bayindir.
That was nothing compared to Grimsby’s second goal which came seconds after another effort was ruled out because it went in off Gardner’s arm.
Onana came out to claim a cross from the left but flapped and barely made contact with the ball, gifting Tyrell Warren an opportunity to tap it into an empty net.
The Grimsby fans could barely believe what they were seeing. Light-hearted chants of ‘we only sing when we’re fishing’ turned to a chorus of ‘sacked in the morning’ as Amorim paced up and down the technical area in a state of equal incredulity.

Mbeumo managed to reduce the deficit for United as he scored his first goal for the club

A goal from Harry Maguire saw the game finish 2-2 and led to an epic penalty shootout
His team rarely looked like getting themselves back into the game in a disastrous first half.
Amorim had no choice but to send for some big guns at half-time, sending on Bruno Fernandes, Matthijs de Ligt and Mbeumo to provide some stability and leadership.
Pym made a fantastic save low to his left to keeper Fernandes’ shot from range but United’s first-choice front three of Mbeumo, Sesko and Cunha struggled to lay a glove on a fantastic Grimsby defence until Mbeumo pulled one back, firing low into the corner after an impressive run and Maguire powered in a header from Mason Mount’s corner to set up the late drama.