Fans at Stamford Bridge were left baffled after spotting a row of people brushing their teeth behind the Chelsea bench.
The Blues beat Fulham 1-0 in the west London derby, but spectators were more distracted by something going on in the stands.
Seven men, who were dressed in black, all stood up in front of the press area and appeared to be reading from a booklet.
But things got even weirder when they started brushing their teeth in the middle of the match.
As it turns out, the individuals in question haven't lost the plot, but were instead 'spies' who were promoting an upcoming film project.
Chelsea co-owner Todd Boehly is involved in a production company which helped create the upcoming film 'Argylle'.
The film is about a reclusive author who is inadvertently recruited as a spy in a plot with a stark similarity to her latest book.
The blockbuster features stars including Henry Cavill, Dua Lipa, Bryan Cranston, John Cena and Samuel L Jackson.
Meanwhile, manager Mauricio Pochettino was spotted with an 'Argylle' logo on his jacket.
Some Chelsea fans were left raging due to the timing of Boehly's publicity stunt, which came while play was underway in the Premier League clash with Fulham.
Supporters at Stamford Bridge could be heard shouting at the actors to 'sit down'.
talkSPORT co-commentator and Arsenal legend Martin Keown was not impressed, declaring on-air: «In the middle of an important game? Come on...»
Fans took to social media to vent their frustration at the promotional campaign.
One supporter said: «Shocking. Not a serious football club anymore.»
Another wrote: «What does this have to do with Chelsea?»
A third put: «What has my club turned into?»
Read on talksport.com