Barcelona president Joan Laporta wants revenge for last season's "unjust" Champions League defeat to Chelsea.
The two clubs will meet again in the last 16, a year after Chelsea triumphed in an acrimonious tie.
"Like thousands of Catalans, I want sporting revenge for what was a totally unjust defeat," said Laporta.
"We didn't deserve to lose. I want to put them out in this round because that's when they unjustly eliminated us last season and that would be revenge."
Chelsea won last season's encounter 5-4 on aggregate, but the tie was marred by controversy.
Blues boss Jose Mourinho accused referee Anders Frisk of talking to Barca coach Frank Rijkaard at half-time in Chelsea's 2-1 first-leg defeat at the Nou Camp.
Frisk then announced his decision to retire from the game because he had received death threats, and Mourinho was fined and banned for two games for his comments.
However, Rijkaard disagreed with his president's assessment of the rematch with Chelsea.
"It's totally wrong to talk about wanting 'revenge' - that's not the right word," he said.
"All of what happened last season is forgotten. All we have to think about is beating Chelsea, not looking back."
And Brazilian midfielder Ronaldinho also dismissed any bad feeling between the two clubs.
"I don't think what happened off the pitch affected the outcome last season," said the World and European player of the year.
"It was our own mistakes that let us down. It all happened because of our own fault.
"There's no climate for settling scores. My thoughts are only focused on being able to win the Champions League."