Possible lineups Arsenal: Čech; Bellerín, Mertesacker, Koscielny, Monreal; Ramsey, Coquelin; Walcott, Özil, Sánchez; Giroud. Out: Arteta (unspecified), Cazorla (knee), Gabriel (hamstring), Wilshere (calf/shin), Rosický (thigh) Misses next match if booked: Özil, Giroud, Campbell Barcelona: Ter Stegen; Dani Alves, Piqué, Mascherano, Alba; Rakitić, Busquets, Iniesta; Messi, Suárez, Neymar. Out: Rafinha (knee), Arda Turan (suspended) Misses next match if booked: Piqué Arsène Wenger, Arsenal manager No team is perfect, but Barcelona are not far from it. We need to take our chances. We will have less of the ball than against Hull, but we have to make the most of it. They have top strikers. Maybe they look like they are having a little bit less possession at the moment because they used to have Xavi in midfield. They have a team that can score at any moment. Even when they are being dominated they are still very dangerous. They did that in the final last year against Juventus when it was 1-1. They were suffering but they took their chances when they arrived. Can Lionel Messi break his Petr Čech hoodoo? I knew Luis Enrique as a player. He scored against us at Wembley in the Champions League. He has done a remarkable job because he arrived with scepticism around him and won the treble in his first year. I remember we played the Champions League final against Barcelona in 2006 and Messi was injured for that game. It's remarkable that was ten years ago and what he has achieved in that time. Luis Enrique, Barcelona coach On paper this is one of the most attractive and appealing games if you like this kind of football. Arsenal are a good team, strong in the transition and with really good players up front. They will press high at times but I hope we can keep the ball in their half and impose our own game. Being labelled favourites means nothing. We have to prove ourselves game after game and we are going to try to. If we get a good score tomorrow that would be fantastic, but we have a lot of confidence going into the second leg whatever happens. I am delighted to have such a good front three, and also with the squad as a whole. They are all the chosen ones because they are fantastic. I’m absolutely delighted to be their manager. I just say 'abracadabra' and the magic sparks.

let c watin fit happen nw, gunners are ready I tink