Kieran Tierney says the 3-2 comeback win over Vitoria on Thursday shows Arenal have "fight and desire".
The Gunners looked destined to lose their second consecutive match until substitute Nicolas Pepe stepped up to score a free-kick.
The Ivorian repeated that feat in the final minutes to clinch the victory for Unai Emery's side.
Tierney said: "It showed the other side of our game. The Standard Liege game was different, we scored four goals and it was comfortable. It shows we've got fight and desire.
"When teams come here the pressure is on us, so it gives them more freedom, the expectation is on us, but we got the three points and that's the main thing."
