“We need to work on that if we want to be successful in the Premier League and the Champions League”
“We need to work on that if we want to be successful in the Premier League and the Champions League.
“We play in a confident way, we maybe lack that bit at the end. What is really important in football, to be successful we need to score.
“The desire to play together and to be good at a team is there, you can feel that, even if there is a bit of negativity that I can understand.
“It looks like the longer the game goes on, we rush and rush our decisions. It is still a learning process for us as a team. It is not that easy.
“You cannot say that you won two consecutive trophies and you are ready. Every year is different and you have to compete and take the challenge.”
Mertesacker admits Arsenal face huge task in the Nou Camp after failing to keep a lid on Barca’s deadly strike trio of Lionel Messi, Luis Suarez and Neymar in the first leg.