"I don't know, we won against a very good team tonight," the Frenchman told reporters when asked where this win ranks Arsenal in Europe. "I have a lot of respect for Dortmund because they are a very good side.
"Unfortunately this group is a very strong group, and one of the big teams will have to pay a heavy price. I hope it will not be us, but of course this is a huge result."
Arsenal are currently level with Napoli on nine points at the top of the group, with Dortmund three points behind the duo.