Quizzed on whether there is a hierarchy of penalty takers at Emirates Stadium, with responsibility being passed around, Arteta told reporters: “There is one and they have surprised me already this season. I don’t really know who is going to take it, sometimes when I see [there’s a penalty] and someone has the ball I’m still doubting. They have the freedom to do it, they practice a lot and it’s what they decide on the day is the best thing to do.”