The manifesto has been further supported by club president Joan Laporta, the coach of the French national football team Raymond Domenech, and the singers Manu Chao, Cali, the group Zebda, and I Muvrini.
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In March 2007, the players of FC Barcelona, Lilian Thuram and Oleguer Presas participated in the reading of a manifesto in defense of the Catalan language and of these schools at a ceremony in Perpignan.