Arsenal boss Mikel Arteta paid tribute to the commitment of matchwinner Gabriel Martinelli after victory over Manchester City.
Martinelli was a doubt going into the game due to injury.
Arteta later said: "It is a special one. It has been a long time since the club beat Manchester City. We felt today could be the day but we needed a big performance from everyone and we had that.
"The players had incredible discipline, they won so many balls. We lacked a bit of threat but overall the atmosphere was just incredible.
"We started the second half really, really well. The subs made a huge difference.
"Martinelli made a huge effort to be in the game, nobody believed he would there. The medical staff were trembling but he was there and he was excellent.
"It sends a message to our team, to keep doing what we are doing and stay humble and then we are a very difficult team to beat."