After enjoying the success of their North London derby victory, the Arsenal coaches and players have needed to quickly refocus their attention to another vital week ahead. Mikel Arteta’s Arsenal side travel to Bergamo to face Atalanta on Thursday – an unusual day for a Champions League match to be played. Of course, once they return from Italy, the Gunners will then also face a trip to Manchester City, the games don’t get any easier. So far this season, Arsenal have already won away at Aston Villa and Tottenham Hotspur – two of the hardest trips of the campaign. And were Arteta’s side successf…