Andres Iniesta hinted at Barcelona anger towards Real Madrid defender Pepe over an alleged stamping incident during their Copa win.
There's claims Pepe stamped on Lionel Messi during the 2-1 defeat.
"We try to have a good attitude. Clubs act in a good way and others do not. I do not get it," said Iniesta.
Barca teammate Cesc Fabregas also said: "I do not regret anything, it's part of football, it happens and for this there are the referees, we are not the ones who have to judge.""Everyone is responsible for what he does," said Iniesta in the mixed zone.