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In 2010, Arsenal signed French defender Laurent Koscielny from Ligue 1 club Lorient for a reported fee of around £10 million. Koscielny quickly established himself as a key player in Arsenal's defense, forming a strong partnership with Thomas Vermaelen. Known for his physicality, aerial prowess, and tackling ability, Koscielny made over 350 appearances for the Gunners, winning three FA Cups during his time at the club.