Internazionale coach Roberto Mancini says his side has to be "almost perfect" if they are to take a positive result out of Thursday's game against Wolfsburg.
The Nerazzurri will be full of confidence after their impressive comeback away at Napoli in the Serie A but the Italian has warned his players they must be at their very best against Dieter Hecking's men.
"Wolfsburg is not just about Bas Dost, they are strong, second in the Bundesliga," Mancini said.
"They are a complete team with very few weaknesses, you don't go second in the Bundesliga if you don't deserve it.
"It will not be an easy game, Internazionale have to be almost perfect to get a positive result, keeping in mind that everything will be decided in 180 minutes.
"Our players are experts, used to play at this level but we have to be careful.
"We are improving, months are needed but next season we will surely fight for the title. But today we're here and we'll do our best to reach the next round.
"But we know they [Wolfsburg] are very strong.
