The Germany international played a key role in Arsenalâs 3-1 victory at West Ham on Saturday, claiming an assist for Olivier Giroudâs first-half equaliser.
âThe atmosphere was very good, the fans are crazy and you get a lot of derbies here,â the striker told Arsenal Player.
âIn Germany you only have one or two derbies, here you have five! I like derbies but it was not good to lose to Chelsea at home.
âHowever, beating West Ham means we are back near the top of the league. I think it was a very important result.