Exactly four months to the day after the Champions League final, Tottenham experienced total humiliation on the European stage with a 7-2 defeat to Bayern Munich.
The Lilywhites conceded seven goals at home for the first time in their history as they capitulated in the final stages.
It represents the worst ever result for an English side in the competition on their own turf.
While the Bavarians were clinical, Jan Vertonghen had it spot on when he said he was "ashamed" of his team's display.
Perhaps what is most alarming is that this was not some one-off anomaly, but felt like an accurate depiction of everything that is wrong in north London all on one night.
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Serge Aurier was consistently out of position, Dele Alli looked a shadow of his former self after the first half an hour, and the centre-backs consistently gave the ball away without making much effort to recover it.
Rumours of dressing room unrest continue, and it's little wonder when this is a group of players who have lost 17 of their last 36 in all competitions.
Just when it looked like they had turned a corner, too. The 2-1 win over Southampton wasn't exactly jaw-dropping, but it felt pivotal. Now, all that work has been undone within three days.
Pochettino may yet be the man to turn this ship around - but questions are starting to be asked in some quarters.
Is the project coming to an end?
After Hugo Lloris' howler let them back into the game on Saturday, Saints fans serenaded their former boss with chants of "sacked in the morning".
Even as the Argentine survives this latest nadir, GiveMeBet still have him as the favourite to become the next Premier League manager to leave his club at 2/1.
Pochettino is followed by Everton's Marco Silva (4/1) and Newcastle's Steve Bruce (6/1).
However, should he choose to leave the Tottenham Hotspur stadium, he is also the 2/1 favourite to become the next Manchester United manager if the position becomes available.
Tottenham have only won three of their 10 games in all competitions this season, a run which has included losing to Colchester in the Carabao Cup, as well as throwing away two-goal leads against Arsenal and Olympiacos.
Among the supporters, Daniel Levy will also take some of the flak for what some see as a sustained neglect of the squad.
Injuries to Giovani Lo Celso and Ryan Sessegnon mean Tanguy Ndombele has been the only tangible new face.
A host of the existing players either wanted to leave in the summer - see Aurier and Christian Eriksen - or at least expected to be sold, in the cases of Toby Alderweireld, Danny Rose, Vertonghen, and Victor Wanyama.
Something is very, very badly wrong.News Now - Sport News