The Germany defender was finally announced as the sixth signing of the summer for the Gunners this evening in a deal worth around £35million.
The 24-year-old joins compatriots Per Mertesacker, Mesut Ozil and Serge Gnabry at the club.
But when asked about Arsene Wenger, Mustafi revealed Arsenal manager's interest in him was a factor in coming to the Emirates.
He said: "When a club comes in and shows interest, and it’s a club like Arsenal, that makes you feel special.
"When I heard of the interest and I saw people trying to get me here - and the situation wasn’t the easiest one - but when you see that people really want to get you here, it gives the feeling that you’re really wanted.
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