Called for fans at the emirates to play their part in the Clubs Champions League match later against porto. They go into the game 1 0 down after the first leg in portugal. Arsenal are looking to reach the quarterfinals of the competition for the first time in m years. Arteta says a home crowd with a great atmosphere always helps. Its a great atmosphere always helps. Incredible. I don they its incredible. I dont think that they realise we need that noise, we need them playing every single with us for that we need the emotional control as well try and understand the game can go through certain phases and we have to be intelligent in the right moments to get what we want. Its a beautiful opportunity to the its been 14 years. So everything weve put in there will be worth it. In the other match later, barcelona take on napoli. After a 1 1 draw in the first leg. They go into this match with Injury Problems and knowing that napoli are on a good run of form. Manager xavi has told his players,