Former England international and BBC Sport pundit Izzy Christiansen was blown away by one Arsenal player’s performance against Chelsea last night. The Gunners were simply unplayable at the Emirates Stadium as goals from Leandro Trossard, Ben White and Kai Havertz secured a 5-0 win for the north London side against Chelsea, sending Arsenal top of the table at the time of writing. It was one of Arsenal’s best performances to date in the Premier League this season, with the display breathing new life into Mikel Arteta’s push for the title and putting pressure on Liverpool and Manchester City to p…