Wenger said: “It was a match against a very good Watford side, who made it very difficult for us at time and we needed a great performance to win. I think we gave that today.
“Overall we did well with the problems they gave us. They are a good team and they look like they can score goals but I was happy with the way we coped.
“Theo Walcott is a young boy, only 17, but he handled his first Premiership start very well and he did well.”