The Switzerland midfielder is the club's only major signing so far this summer.
The midfielder says St James Park is one of the best stadiums he's played at.
The Gunners secured their first win of the season against Watford on Saturday.
Tottenham coach Kieran McKenna has reportedly left the club for Manchester United.
The defender is set to join the Gunners in a big money move from Valencia.
Manchester United are reportedly keen on Sheffield United striker Dominic Calvert-Lewin.
Chateauroux forward Jean-Philippe Mateta has snubbed Tottenham, according to his agent.
Liverpool are reportedly ready to wait for Borussia Dortmund starlet Christian Pulisic.
Tottenham are being linked with a move for Real Madrid ace Isco.
Everton continued their unbeaten run with a 1-0 victory against Stoke City.
Liverpool manager Jurgen Klopp addressed the media ahead of his side's Premier League clash with Watford.
Liverpool made it through to the Europa League final after overturning a one-goal deficit from the first leg, progressing 3-1 on aggregate against Villarreal.
The Portuguese international reportedly has a contract offer from the relegated club.