Barcelona have lost an appeal against a decision to ban them from the transfer market for two consecutive windows.FIFA said in a statement on Wednesday that as a result, Barca, who were found guilty of breaching rules on the international transfer of under-18 players, will be banned from registering players during the next transfer window in January as well as the 2015 summer window. FIFA also rejected Barcelona's appeal against a 450,000 Swiss francs fine and have been given 90 days to regularise the situation off all the minor players concerned. The ban was originally imposed in April and would have covered the current transfer window, followed by the next one in January. However, Barcelona appealed later the same month and the ban was lifted pending the outcome of the disciplinary process. The FIFA said in a statement that Appeal Committee has decided to confirm in their entirety the decisions rendered by the FIFA Disciplinary Committee.