Chelsea boss Jose Mourinho says he wants referee's assistant Peter Kirkup to apologise after the official disallowed a strike by Salomon Kalou.
Mourinho was livid after Kalou's strike was ruled out
TV replays suggested the Ivorian was behind the line of the ball when he sidefooted home in the second half of Saturday's 0-0 draw with Blackburn.
"I can't understand it. If the linesman wants to explain, then maybe it would be a good thing," said Mourinho.
"I told the linesman I would be waiting for his phone call to apologise."
Referee Howard Webb disallowed the goal - a decision which sparked anger on the touchline with Mourinho berating the fourth official Peter Walton and urging him to look at TV replays.
Mourinho added: "We scored a great goal. Only the linesman can tell us why he disallowed the goal."
Blackburn boss Mark Hughes disputed Mourinho's version of the Kalou 'strike'.
"The goal was offside. He was only about half a yard or so, but he was offside," he said.
"From our point of view we are happy that it was offside. It would have been difficult for us to come back into the game if we had conceded at that point.
"But the assistant referee immediately put his flag up and that usually means he is pretty certain himself.
"Obviously Chelsea won't be too happy with that but if you watch it again, I think you will see it is offside."
Mourinho praised his side's display after the point which was enough to keep the Blues in the top four in the Premier League.
"The game is over and we lost two points. I have only good things to say about my players. A team without big ammunition, without the two target strikers, Didier Drogba and Claudio Pizarro," he said.
"A team without a top scorer like Frank Lampard and without that kind of ammunition, the team still played well against a team that fought a lot to keep a clean sheet and go home with a point.
"Blackburn are a team I respect because they fought a lot. But Chelsea were the best team, my players were brave and we scored a great goal.
"Blackburn started the game very well but Chelsea pushed them back. In the last 20 minutes, our attacking was massive."