They are accustomed to the competition
Arsene Wenger has led the side into 17 consecutive Champions League competitions so everyone down to the tea-lady should be well versed in the continental competition. The Gunners can have no excuses of players being overawed by the occasion as they have had plenty of dress rehearsals.
While Wenger’s side has never won the Champions League, they have come agonisingly close, losing 2-1 to Barcelona in 2006.