Arsenal winger Theo Walcott knows he should be doing better.

By his own admission Walcott has not been at his best in recent weeks. However, the England international insists that he is his own harshest critic and is working hard to rediscover his best form.

He told arsenal.com: "I just want to play my game and show people what I can do," he said. "I am the best judge of my performance, not anyone else. I wasn't happy with my last few games but hopefully now I can try to get back to a level I should be at.

"I think it was a good thing that it was the FA Cup [on Sunday], it's totally different to the Premier League. I think we needed a slight break.

"It's a cup competition that we can win, a couple of big teams have gone out in the early stages and if we can come from 2-0 down, hopefully we can beat anybody now. Hopefully we can just show the fans and our team-mates that everyone is ready now and that we can win this."