The Catalans have been on the receiving end of some questionable calls from match officials in recent times and their mentor has lambasted claims that they go down easily.
"There's evidence that our players are those who are the most fouled yet most punished, despite committing less fouls," he said in pre-match comments.
"First there was a campaign that claimed my players threw themselves to the ground and were provocative.
"Many of the people in the media who started that campaign are now the ones claiming that these same players pick up too many cards.
"We must keep trying to put on a spectacle and play good football, but each to their own with their conscience," he concluded.
The Nou Camp based-outfit will look to maintain the pressure on table-toppers Real Madrid when they host Athletic Bilbao.