Maurizio Sarri's position as Chelsea manager is under threat.
The Italian boss has only been at the helm for seven months, but a recent collapse in form means his stay at Chelsea could soon be over.
To make matters even worse, it seems a vast number of Chelsea fans have turned on him, too.
On Monday night against Manchester United, supporters of the west London club sang 'f*** Sarri-ball' as they let their grievances known.
Despite the chants, Sarri insisted he is only focused on improving results and not what the fans think.
“I have to work on my players, not on the fans," he said after their 2-0 defeat to United, per talkSPORT.
“I’m concerned about the results. I can understand the fans because the result was not good, but I am worried about the result.”
But who could Chelsea replace him with?
According to Sky Sports, Chelsea are understood to be 'very concerned' about the team's recent performances and results.
The board are aware of the scale of the problems at the club, especially after Chelsea fans' behaviour on Monday night.
And they have already drawn up a list of potential replacements if Sarri were to be sacked.
Zinedine Zidane has been out of a job since last summer and he is on Chelsea's radar.
The Frenchman has proven his pedigree as a manager, winning three consecutive Champions League titles with Real Madrid.
Chelsea legend and current Derby County boss Frank Lampard is also being considered.
The 40-year-old doesn't have much experience in management - he's only been Derby boss since May - but he's made a good start to his career.
He would undoubtedly be a popular choice and could have the same impact as Ole Gunnar Solskjaer has had at Manchester United.
He addressed speculation about the job last week, saying per the Sun: "It's certainly a club I respect and a manager that I respect so it wouldn't make me smile or anything different because my job is here.
"I'm working very hard and my whole thoughts are with Ipswich away on Wednesday, and travelling down to Brighton in the FA Cup [fifth round] at the weekend."
Chelsea are also considering putting Gianfranco Zola in charge until the end of the season.
Zola currently works as assistant manager to Sarri and will already have an in-depth knowledge of the playing staff at Chelsea.
If Sarri were to be sacked, who would you want to replace him? Have your say by leaving a comment below.