"You have to believe in dreams and miracles. If you don't have dreams, you can have no targets," said Samaras. "We are going to attack, to pass the ball, you never know what can happen."
Barcelona suffered their first defeat in 16 games on Saturday, going down 4-2 to Atletico Madrid, and a similar result would be enough for Celtic to advance to the quarter-finals. Samaras realises however that Celtic will have their work cut out emulating Atletico.
"The way Barca play is phenomenal, we saw in the first game how they pass the ball.
"One thing we must do is try to press them more, so that we can have the ball more than we had in the first game. But we are going to Barcelona to enjoy the game."