Central Defenders

Per Mertesacker and Laurent Koscielny

This hybrid German-French partnership is going from strengths to strengths as the season progresses. Mertesacker brings an aura of calmness and discipline to the Arsenal defense while his French counterpart injects pace and tenacity to the setup. Even though club captain, Vermalean is warming the bench, Wenger  should go with the same pair. Why change the winning formula?