Los Blancos beat Valencia 2-0 in the Copa del Rey on Tuesday with controversial decisions given by the officials in the match.
And Banega insists it is because Jose Mourinho's men put extra pressure on the referee.
He told reporters: “The story is always the same, there are teams like Real Madrid that just constantly talk about referees during the week.
“And so when it comes to the game, it's hard. The images are there for everyone to see, but we are focusing on the next game."
Valencia play Real Madrid again this weekend, this time in La Liga, and Banega does not think that the result of the last match will have any bearing on this one.
“We know we can hurt them and we will try our best.”
Banega has featured 12 times for Valencia in the Primera Division but has yet to find the net for Los Che.