Nelson Oliveira has accepted Deportivo La Coruna that beating Barcelona in Saturday's La Liga encounter will be a difficult task, but believes the Catalans are no longer best team in the world.
Real Madrid coach Jose Mourinho pointed out earlier this week that the Blaugrana are no longer Spanish nor European champions, and are therefore not the benchmark any more, and the Portugal international has echoed his compatriot's sentiments that the Camp Nou side are not on another level to the rest.
"Barcelona aren't the best team in the world. I think they're up there with the best, but Madrid are also a great team, albeit with a totally different playing style to Barca, but they have a great team too," Oliveira was quoted as saying by Marca.
"We're going to give it our all and go all out against them, because that's the only way you can beat Barcelona. They have a great team, but we have quality too and we'll have to see what happens.
"Overcoming Barcelona won't be an impossible" task, but it will be difficult because they have an incredible squad and they're very tough to beat. They don't really have any weaknesses."
Saturday's encounter is scheduled to kick off at 22:00CET.