Arsène Wenger thinks Arsenal's 2-0 win at Bayern Munich in March was a turning point in his side's fortunes away from home.
That win wasn't enough for the Gunners to progress to the quarter-finals of the Champions League last season but Wenger's team have won nine consecutive away games since then.
Arsenal return to European action with a trip to Marseille on Wednesday and the Frenchman has praised his team's current away form.
We had nothing to lose, we decided to go for it and realised after the game we were very close to knocking them outArsène Wenger
"What happened that night is that we were in a position where we were expected to be hammered and everyone predicted a six or seven-nil," he told Arsenal Player.
"We had nothing to lose, we decided to go for it and realised after the game we were very close to knocking them out.
"Overall, I believe even last season we had a decent away record and from that moment you think, 'If we can go to Munich and win, why not anywhere else?'"
Thomas Vermaelen made a brief return to action from the bench in Saturday's win over Sunderland and the boss is delighted to have the Belgian defender back in the squad.
"It is fantastic to have him back, as a character and a player. Everyone is happy that he is back," said Wenger.
"He has gone through a difficult period but he is a great player, and will show that now that he is completely fit and available."Copyright 2017 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source