Arsenal manager Arsene Wenger lauded Theo Walcott as a completely different player after the forward continued his impressive start to the season.
Walcott netted his third Premier League goal of the campaign as Wenger s men claimed a 3-0 win over Chelsea on Saturday.
The England international was hailed by his manager after Arsenal claimed a league win over their London rivals for the first time since October 2011.
You cannot question his performance, Wenger told a news conference.
But I believe more the change in Theo Walcott is his attitude to this season. He s ready to fight, commit and straight away he gets the crowd behind him.
Theo Walcott of that stature is a completely different player.
Alexis Sanchez and Mesut Ozil were also on the scoresheet in a stunning first half at the Emirates Stadium.
After 20 years in charge of Arsenal, Wenger insists his desire is as high as ever.
I m hungrier because I know I don t have 20 years in front of me, the Frenchman said.
Also I feel more responsibility, you re not 20 years somewhere and you don t care about things.
I m more conscious of what Arsenal is all about so I think the weight of keeping people happy and making people happy is heavier than when I arrived.