The Germany international played a key role in Arsenalâ€™s 3-1 victory at West Ham on Saturday, claiming an assist for Olivier Giroudâ€™s first-half equaliser.
â€śThe atmosphere was very good, the fans are crazy and you get a lot of derbies here,â€ť the striker told Arsenal Player.
â€śIn 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.
â€śHowever, beating West Ham means we are back near the top of the league. I think it was a very important result.