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Five things we learned from Arsenal's impressive win over Swansea
EXPRESS SPORT brings you five things learned from Arsenal's win over Swansea.
Olivier Giroud fired Arsenal in front just before the break.
Swansea scored two own goals before Alexis Sanchez added a fourth 17 minutes from time.
Click through the gallery above to see five things learned from Arsenal’s win over Swansea.
Arsenal beat Swansea 4-0