Who will be no. 1 in Arsenal's goal?

1/8 final FC Porto - Arsenal at Wednesday was very poor performance of Łukasz Fabiański. Both lost goals can be put on his account. He allowed an own goal, similar as Manuel Almunia did in the Premier LEague match with Manchester United in January.

For now it seems he lost both his chance to be no. 1 in Arsenal's goal and in Polish national team. Will he go on the loan? For sure he need to play regullary. Had a knee injury which ruled him out for months. Maybe it was too early for him to be back after the operation? Did the coach Arsen Wegner did a mistake and put him in the goal too early?

But Manuel Almunia can't be sure about his postion too.

Will someone else become a no. 1 in the next season?