Samir Nasri believes Arsenal must play their usual game at the Nou Camp as they do not have the right sort of players to nullify Barcelona.
Arsene Wenger's men could be forgiven for attempting to shut up shop in an attempt to hold on to what they have, but Nasri does not think that is possible.
"We must rely on our game if we want to win. We can't play another game to stop them. We are not Inter Milan," he said.
"We don't have the same qualities as Inter Milan. We don't have a Walter Samuel, Marco Materazzi or Esteban Cambiasso to kick everyone.
"We have players who love football, who want to play attractive football.
"We will go to the Nou Camp and play our game. They will attack us with pace and we must take them on the counter.
"We are confident we can beat them in the Nou Camp. It will be a similar game to the first leg - Barcelona play the same away as they do at home.
"It will be difficult to beat them, but even if we draw we qualify, so we can go through."
Nasri, a £15.8million signing from Marseille in 2008, has already mapped out Arsenal's path to Champions League glory.
"If we beat Barcelona I'd like to beat one London club in the final," he said.
"I want Arsenal to be the first London club to win the Champions League.
"In the quarter-final my dream would be to play Marseille. I want them to beat Manchester United so that I could play them.
"It would be very special. I was born there, I grew up there and played for Marseille for 10 years. I really want to go back and play there.
"I want to show them I'm a different player. It would be something special to show my family and friends.
"In the semi-final Tottenham and then in the final Chelsea."
Nasri believes shackling Lionel Messi is the key to overcoming the best team he has faced.
"It's harder to stop Messi than Xavi or Andres Iniesta because he can make the pass, can dribble, can score. You cannot stop him," he said.
"Even if you follow him for 90 minutes you know something will happen because he has such quality to make the difference.
"Xavi and Iniesta are more players with the pass. But Messi can make the difference alone."
