Laurent Koscielny believes Arsenal are under no pressure against Barcelona, but face a tough task of overturning the deficit.
Wenger’s men fell to a 2-0 loss in the first leg of the last 16 clash and have a mountain to climb in the return leg at Camp Nou.
Since losing to Barcelona, Arsenal have won just one match in all competition, falling 11 points behind leaders Leicester City and crashing out of the FA cup.
Progressing in Europe looks unlikely too, but Koscielny still believes they could cause an upset against Luis Enrique’s side.
“We don’t have pressure like in the first game, because we play against the best team in the world,” he told Arsenal Player.
“Now we need to play the second leg away at Barca and we have nothing to lose. People always talk about the statistics and I think we have maybe a five per cent chance to qualify.
“You know when you play against the best players in the world, the best team with a good collective side, it’s very important for us. It can be very important if we can have a [good] result.
“They have a lot of quality, they can have a lot of possession during the game and when they accelerate with their top players, they create chances.
“We need to play with freedom and believe in our quality because we did well during the first six months of this season. I don’t see why we can’t [play like that] against Barcelona and for the rest of the season.
“You know we are in a difficult period and we need to stay like a unit to be stronger. We will fight until the end of the season.”