Uefa are investigating Pellegrini’s comments and the Chilean could well land a large fine and a touchline ban for future European games.
The new City boss was livid after the referee waved away appeals for a foul on Jesus Navas just seconds before Martin Demichelis brought down Lionel Messi for a penalty and a red card.
After the game, Pellegrini slammed the referee and Uefa for allowing the Swede to take charge of the game in the first place but now the 60 year old has apologised and feels misunderstood.
“Of course my thoughts are different now. When you lose the game in the way we did you are angry and frustrated,” Pellegrini said.
“Maybe I said something that I don’t think. I apologise for what I said.
“I want to clarify – I did not make any no accusation to anyone, not the referee, not UEFA, not anyone.”
Pellegrini has been charged by Uefa and they are awaiting his response.