Arsenal's miserly defence has conceded three Premier League goals so far this season and manager Mikel Arteta hopes their fortress-like foundation can finally deliver the silverware that has eluded the North London club for so long.
Chelsea slipped up in their push for a Champions League spot when they lost 1-0 at home to Arsenal in the Premier League on Wednesday with Emile Smith Rowe's first-half goal settling the London derby after a defensive mix-up by the hosts.
Two of the three main Premier League title contenders will suffers as some of their players head for the African Nations Cup in Ghana.
Arsenal manager Arsene Wenger slammed his side's defending after watching Anderlecht claw their way back from three goals down to earn a 3-3 draw in Champions League Group D on Tuesday.