Wenger said: "The first thing you want from your defenders is to defend well, so we cannot reproach him for that. You will see the other aspects of his game more when his confidence has settled.
"Monreal is good in the air for a guy of his size, has a quick leap and has looked good. He is very strong in other areas too, his crosses for example, and his forward play you will see a bit later.
"It happened with Kieran Gibbs too, the more confident he became the more efficient he was going forward. It can take a bit of time to express that side.
"There is no better culture shock than to play against Stoke and Sunderland.
"He has not said a word to me about it, but he has spoken with the other players and he has seen all about the passion and commitment of the English game. You can say Nacho Monreal passed that test."