William Gallas is a graduate of the French Football academy at Clairefontaine. He started his profe sional career at second division SM Caen helping them to promotion as champions in 1996Then Chelsea manager Claudio Ranieri bought Gallas from Marseille in May 2001 for 6.2 million. He chose the number 13 shirt because it was his postcode back when he lived in MarseilleGallas was part of Chelseas...