Barca were comfortably beaten in the second leg of their Copa del Rey semi-final Clasico, and Roura refused to make excuses for his side's defeat to their arch-rivals.
"In the first leg (which ended 1-1) and in the Supercopa, the two teams were matched. They were decided by details. [But tonight, Madrid] were far superior," Roura told reporters.
"In football you cannot always control things, it is a game of mistakes. Madrid are one of the best teams around on the break.
"This is a thing that we knew, and we tried to control it but we lacked wisdom. We lacked effectiveness. This makes Madrid a great team."