An official letter from FIFA Secretary General Jerome Valcke addressed to the Russian Football Union's about transition of Crimean football clubs in the Russian championship. "Russian Football Union intends affiliate associations and clubs that are affiliated to the Football Federation of Ukraine , and in this case , Art. Charter FIFA 84 . According to it , leagues or clubs affiliated to a member of FIFA, can join another member of FIFA or participate in the competition in that Member in exceptional circumstances. Since legal and factual situation concerning your request is not clear, we respectfully inform you that we can not consider approval at this stage. we strongly recommend that General Assembly of the RFU not affiliate relevant associations and clubs before they will be explained the legal and factual situation will be received appropriate permissions according to the FIFA Statutes , "- said Valcke.