"We have confidence in our team. But we know that we're not all of a sudden the best team in the world, just as we knew when we were criticised that we weren't the worst," the Brazilian defender told the club's official website.
"It was a good step forward but we still have a lot to do against Porto and Marseille. Everyone can still get through but we know it depends on us whether or not we do it.
"We know we are very strong at Anfield and the other teams will have seen this result. All we have to do is keep working hard and believing."
