Arsenal manager Arsene Wenger says "solidarity" is what made his players make it through the final minutes of the game against West Bromwich Albion.
A tired-looking Gunners team kept their focus to shrug off last-minute attempts from the hosts and take all three points from the Hawthorns.
"In the end our solidarity got us through when the legs went in the last 10 minutes," Wenger said.
"Maybe we were a fraction lucky on the crossbar, but overall it's a well-deserved win.
"We had a clean sheet against Dortmund and we had one today. We had three very good games in the week, one against Manchester United, one against Dortmund and one today.
"Unfortunately against Manchester United we didn't win but our performance was there. Defensively we were maybe a bit more stable today but I think against Dortmund we had a very good defensive performance."
A minority of the Arsenal travelling fans displayed a banner after the game reading "Arsene, thanks for the memories but it's time to say goodbye" but the Frenchman opted not to comment after the game.
"I don't comment on that [the fans' banner]. Do I need to say it again? I don't comment on your question.
"We can let people talk. We live in a society of total opinion but we live off what we do, not what we say. What we do is on the football pitch."
The Gunners will be back in action on Wednesday as they host impressive Southampton at the Emirates before facing Stoke City away from home on Saturday.
