Arsenal defender Thomas Vermaelen insists they're capable of much more after last night's stunning 5-0 win over Champions League opponents Porto.

Those inside Emirates Stadium were treated to a showing of Arsenal at their free-flowing best, and it is difficult to see who could live with them in that kind of form.

However, Belgian centre-half Vermaelen insists they are capable of raising their standards even higher.

"I don't know if it was our best performance of the season but we played a good game," he told Sky Sports.

"From the first minute we were putting pressure on them and they couldn't handle it. We scored two early goals and that was good for us.

"In the second half we didn't start that well, but after that we scored three, four and five."