Jorge Jesus has stoked the fires ahead of Benfica's Champions League group clash with Barcelona, by claiming that their Iberian counterparts are not "perfect".
After opening their European campaign with a goalless draw against Celtic, the Portugese champions host the Spanish giants in an exciting clash at Estadio da Luz.
Looking ahead to his side's meeting with the Catalan club, Jesus acknowledged Barcelona's ability in possession, but said that recent performances against Sevilla and Spartak Moscow highlighted a number of flaws.
"They are the best team in the world when it comes to planned attacking," said the Benfica coach. "But they had some problems against Spartak and Sevilla which prove that they are not perfect.
"The coaches studied them well and you could see why Barcelona were losing those matches. When they lose the ball, their opponents counterattacked sometimes with danger and managed to score.
Asked about his chances of overseeing a major European scalp, Jesus added: "It will be a big European night like past seasons, with the big difference this time being that the opponents are Barcelona.
"The atmosphere will be great and we want to perform well against them, if possible, by earning a point. In the Champions League, simply not losing these matches is a good result."
Barcelona will be looking to maintain their perfect start to the European campaign, after they defeated Spartak Moscow 3-2 at Camp Nou in their opening game.