The 27-year-old played in all 38 Premier League games for Brentford last season, earning widespread praise for his performances.
After finishing second to Manchester City last season, Arsenal have splashed over £200 million ($254 million) on new signings to try and claim their first title...
Arsenal have already secured their first silverware last Sunday after winning the FA Community Shield from Manchester City are in for another season of surprise.
Mikel Arteta’s side forced the shoot-out thanks to Leandro Trossard’s heavily deflected equaliser 11 minutes into stoppage time at Wembley.
Manchester City is now at the top of the Premier League Table after defeating title rivals Arsenal 1 - 3 last night at the emirate Stadium.
