Two of the Brazilian team's players were subjected to monkey chants by sections of the home crowd, but the stopper stressed that it only helped build up their motivation
Dede and centre-back partner Renato Silva were both subjected to 'monkey chants' throughout the match against the Paraguayan team, with the 23-year-old lamenting that the issue of racism is still plaguing the sport.
"It is not easy to listen to some jerk calling us monkeys," Dede told Globoesporte. "I am sad that there are still people like this, but I keep my head held high.
"I am proud about the colour of my skin and I am proud about being Brazilian. This is not the last time that this will happen, but that will not bring me down, quite the contrary.
"This gave us more motivation for the match and also for the rest of our lives.
"If the same thing happens in the home match against them, it will be a different story. We will be in our country and we will try to take some action."
Vasco are second in their Copa Libertadores group, with four points from three matches.