Willian has been 'blamed' for Chelsea's offside goal in their 2-1 win at Cardiff City.
Images have emerged of the Brazilian wideman, 30, standing between the action inside the box and the assistant referee, apparently blocking his view.
With 84 minutes gone on the clock, the equaliser gave Chelsea the impetus to push on for a 2-1 win.
But Bluebirds fans are livid with the decision to award the equaliser, with goalscorer Cesar Azpilicueta and Ruben Loftus-Cheek behind him both in offside positions for the visitors' first goal.
Understandably their manager Neil Warnock was apoplectic at referee Craig Pawson and his assistant.
He said: "I don't know what Mike Riley [PGMOL general manager] does with the linesman, if you can't see straight across the line.
"I spoke to the officials and they feel as bad as I did.
"He said that Willian blocked his view.
"Surely you can see either side that he was two yards offside."