Samir Nasri was delighted to deliver a five-star performance to Arsenal fans in their victory over Manchester United.
He said: "We've had a tough week but we couldn't have dreamed of a better result.
"Maybe we don't have the experience of Liverpool, Manchester United or Chelsea but this was a great answer to show how mature we've become.
"Yes, we are back in it. But we always thought we were in it anyway, even before this game. We know what we can do and we can definitely achieve the title this season."
Nasri was also had words of support for gaffer Arsene Wenger, adding: "Arsene is one of the best managers in the world and it's a great honour for me to play for him.
"The criticism he has had has been a bit unfair. Wait until the end of the season and then we will see how things have turned out."