Arsenal's Champions League group-stage campaign got off to a brilliant start as they thrashed PSV 4-0 at home. Though they lost 2-1 against Lens in France, they recovered with a pair of narrow wins against Spanish side Sevilla.A thumping 6-0 victory against Lens helped them gain revenge and secure qualification, and a much-changed side drew 1-1 with PSV to round off the six matches as they finished top of the group.A job well done.