"I'm still getting my breath back! We worked really hard, we worked hard in the week and we obviously know what's happened in the past," Walcott told arsenal.com.
"But the past is the past, it's all about now and this team is bright and young and has got a lot more experience in these games now. People would expect us to go on and get four or five but that's not the case. You saw on the kick-off this morning, it's always easy to actually get 11 men behind the ball and they've got to come from us then. And then it plays into our hands. But the guys did well today, really well done."