The defensive midfielder signed on deadline day from Atletico Madrid after his £45 million release clause.
Having been excellent for Atleti domestically and in the Champions League, Partey now hopes to carry that form to the Premier League.
Partey believes his game compliments Swiss star Xhaka, and that the two would be an excellent central midfield duo.
Xhaka had fallen out of favour at the club with many supporters when Unai Emery was manager.
However, he has re-established himself as a key player under Arteta.