Roma coach Rudi Garcia says his players are ready to face one of the best teams in the game of football.
The Giallorossi host the reigning Champions League champions on Wednesday night eager to kick-off their European campaign with a win.
"We know Barcelona are a top side and the reigning European champions," Garcia told reporters.
"They've won their first three league matches and there's no need to repeat all the praise they've been given. We know all about them. If they're not the best in the world, they're certainly up there. We'll play with humility tomorrow but also ambition.
"Looking at the statistics, they're not only good on the counter.
"They're a team that keep the ball and they have lots of pace up top to strike at the right time, making the most of quick breaks. We have to come out well when we have the chance to.
"As I've said, the aim is to get a result based on the quality of our players, thanks to a good team approach in both phases of the game. We won't just let Barcelona play football.
"There will obviously be times when we have to however. We need to counteract their pressing, a tactic they adopt when they lose possession and want to win it back immediately. If we manage to do that, we can start thinking positively.
"We want to qualify for the next round and to do so we'll need to perform as well as we can in all six games in order to pick up points.
"There's no anti-Messi plan, just as there isn't one to stop Suarez or Iniesta. You deal with that threat - as Daniele De Rossi has already said - as a team, both offensively and defensively.
"We don't plan on defending all game. We know there will be times when we have to dig in but we also have to use the ball well to give the opposition a problem. We're running out of superlatives to describe Messi. He's one of - if not - the best in the world."