Granit Xhaka has seen enough to know Thomas Partey will be a major asset for Arsenal.
The Gunners acquired Partey from Atletico Madrid on deadline day.
While Xhaka has yet to play with the Ghana midfielder, he knows he'll bring quality to Mikel Arteta's side.
"He will be the guy who is important for me and as well for the team. Everyone in the club can be happy because he has great quality," Xhaka said.
"He will bring a good mentality, a good balance in our game because this is what we need a bit more: the mentality to win.
"He played at Atletico Madrid, a different type of football, and he will bring a lot of good quality and mentality."
