Here's some of what Feijao had to say:
On how he became a fan:
"I always watched the UFC, since when Royce Gracie was fighting," he said. "When I was a kid and training Jiu-Jitsu, I already wanted to be fighting in there. To me, fighters were like superheroes.
"I made a lot of changes," he said. "I felt that I was winning that fight, but it proves that anything can happen. I matured a lot, I learned a lot, and I believe we learn even more from losses. I went back and worked on everything; I wanted to improve my boxing, Jiu-Jitsu, wrestling, everything."
On being suspended for failing a drug test:
"I feel that I grew a lot during the suspension," he said. "I worked very hard, I had the full support of my Team Nogueira family, I kept my focus and I now believe I am in my best shape, even better than before."
On returning from injury:
"I took almost three months off and came back in stages," said Cavalcante. "I first prepared my body to get back in training, then I started training and had the chance to be a part of some of my teammates' best camps. I really had a chance to work hard and adjust everything."
On training with Anderson Silva and the Nogueira brothers:
"I pick up a lot of experience," he said. "They have been through a lot both inside and outside the ring, and they pass that experience on. They also help fine tune things and help with game plans, things that only experience can bring."
On his opponent:
"He is a complete fighter, good on the ground, good on his feet," he said of Silva. "He is aggressive, a style similar to mine, and whenever he lost, he was fighting until the end."
On making his Octagon debut:
"The fans can expect to see what I always do," he said. "I am going in to finish the fight and I am ready. They will see an aggressive fighter with a lot of will to fight."