Chelsea boss Roberto Di Matteo has continued his war of words with Sir Alex Ferguson by implying that referees unconsciously favour Manchester United.
Friday's press conferences at both United and Chelsea had been characterised by a tit-for-tat exchange as the Stamford Bridge boss criticised Ferguson for commenting on the Mark Clattenburg issue.
And, when specifically asked whether he was concerned about repeated decisions supposedly going United's way in recent high-profile games, Di Matteo spoke with surprising frankness.
"I think there's a lot of evidence for that. So, there's some kind of feelings in general but I don't think the referees do that with a purpose," he said. "It's just part of the decision-making, and it seems to go one direction."