The Confederations Cup final win over Spain raised a few eyebrows.
Brazil defeated reigning World and European Champions Spain 3-0 in the final, which many believe has laid down a marker ahead of this World Cup, as the host nation goes into the tournament as favourites.
Luiz, who recently transferred to Paris Saint Germain for a fee believed to be a world record fee for a defender, is quoted by Goal, saying: "The World Cup is a different tournament, in fact, [it is] the biggest of the tournaments.
"In football, past results don't count. So, we are trying to forget what happened a year ago [in the Confederations Cup]... and concentrate on the job at hand.
"Yes, it was great to be champions of the Confederations Cup. It would just be great to repeat that success.
"There's tremendous excitement. Playing in the World Cup is a dream for every footballer and it is a great moment for me. It cannot get bigger than that!"
The past results may not count, but they only add to the pressure of the host nation. But it wasn't just the result last summer that made the world sit up and take notice, but the manner in which they dismantled Spain.
The final, of course, is a long way off with the tournament only getting underway this evening with the hosts taking on Croatia in Sao Paulo.
Whilst the team will try to forget about the past results, others won't and will be wary of the threat that Brazil possess. As they are the host nation, some will say it is inevitable that other sides will raise their game in order to spoil the party.
The best thing Brazil can do is focus on their first game and get off to the best possible start with a win against Croatia.