Chelsea's defeat at Bournemouth on Wednesday night was by far their most embarrassing performance of the season.
In fact, it's up there with their worst in Premier League history and the 4-0 humiliation was their biggest league loss since 1996.
But it's not the first time that Maurizio Sarri's side have underperformed during this campaign.
They've already been beaten by top-four rivals Arsenal and Tottenham and after both of those games, the Chelsea boss hit out at the mentality of his team.
It looked like his public criticism had the desired effect after the Blues booked their place in the Carabao Cup final and reached the fifth round of the FA Cup last week.
But against Bournemouth, those suggestions of a poor mentality amongst the players re-surfaced and unsurprisingly, really frustrated Sarri.
DELIVERING THE MESSAGE
Following the match, the Chelsea boss kept his team in the away dressing room for almost an hour and even kicked his backroom staff out, to ensure his message to the players was taken seriously.
And once Sarri re-appeared to address the media, he remained tight-lipped about what was said in the meeting, but stressed he was more 'frustrated' than 'angry'.
Less than 24-hours later though, the Daily Mail has published details of what was discussed behind the dressing room doors - and it makes for very interesting reading.
A SCATHING INQUEST
During a 'passionate' 50-minute inquest, Sarri accused his players of ignoring his instructions and asked them if he was the reason their form has dipped once again.
It's believed he cited various occasions during the match where he believed his team didn't follow the gameplan and even asked why they disregarded what they worked on in training.
Sarri then invited his players to tell him if there were aspects of his coaching methods that they weren't responding to, opening up the discussion further.
It's noted that the boss didn't lose his temper or even raise his voice during the impromptu meeting - but his players were left in 'no uncertain terms' about how angry their manager was with the display.
TRAVELLING HOME ALONE
What's even more intriguing though, is the report reveals Sarri travelled back to London alone by car, rather than on the team bus with his players.
He apparently did so to work out why his tactics are not working in private, but his decision to travel alone will further fuel speculation that there's disharmony in the Chelsea dressing room.
The Mail's report concludes by suggesting that a number of senior players have private concerns about Sarri's style of football and believe that they're not equipped with a 'plan B'.
Therefore, when rivals work out how to stop Chelsea from playing - as Bournemouth did so well, the team have no backup. And that, is certainly worrying.News Now - Sport News