Jose Mourinho has turned up the heat ahead of Chelsea's clash with Barcelona on Tuesday by taking a swipe at former Blues striker Eidur Gudjohnsen.
The Icelandic attacker swapped Stamford Bridge for Camp Nou in the summer and he has taken on a prominent role for his new club following the injury to Samuel Eto'o.
He hit the headlines at the weekend when winning a controversial penalty against Recreativo Huelva, a tumble which caught the eye of Mourinho.
"I know the number of penalties they have at home," said Mourinho. "I know the number of times they play against 10 players.
"I am surprised with Eidur because he played in English football all his professional life and three months later, he gets that penalty."
Barca coach Frank Rijkaard has responded to Mourinho's comments by insisting his side do not cheat.
"We don't need to do that," he added. "It is a poor man's mind to talk like that.
"It's almost always losers who complain about the results and it's something we have to cope with."
Mourinho, meanwhile, has dismissed suggestions that he would rather see Werder Bremen reach the last 16 of the UEFA Champions League than Barcelona.
Chelsea are well placed to reach the knockout stages, having beaten Barca at Stamford Bridge and a repeat result on Tuesday would put great pressure on The Catalans.
The Blues face Werder after their trip to Barca and Mourinho has scoffed at suggestions he will field a weakened team.
"For me, it's not a problem which team qualifies in second," the Portuguese said.
"If Chelsea qualify, and especially if we get first place, then nothing else matters to me. It's not my problem if the second team to qualify is Werder Bremen or Barcelona.
"Whatever happens tomorrow, we will go to Bremen with exactly the same attitude and that is to win. Only an idiot would think that I would go there with a second team to lose."