The German struggled to get to grips with the corporate mentality of Real Madrid and feels better suited to the Gunners.
He told the Mirror: "I'm really proud to be part of this Arsenal family here.
"As a footballer, we're out and about, on the road all of the time, it's great to just stop for a moment, see these things.
"It's actually what I said right when I joined Arsenal. When people tried to convince me when I came here, it was that family spirit at Arsenal which convinced me mainly. This is exactly part of that, what we've seen here."
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