Arsenal legend Freddie Ljungberg is convinced they can win the title this season.
He said: “Xhaka, I've seen him quite a lot and he's very good.
“He's a hard-working midfielder with a great left foot, like we had with (Emmanuel) Petit.
“I've heard on Lucas that he's impressed a lot of people on the training ground.
“I think some people wanted some signings in the summer but everyone knows English clubs have a lot of money at the moment and if you ask for a player they raise the prices.
“He managed to get the players in the end."
Ljungberg added: “They were second last year and this year hopefully we can win it."