Barcelona was banned by FIFA from signing any new players for next season after being found guilty on Wednesday of repeatedly breaching transfer regulations regulations in signing youth players to its renowned La Masia program. The Spanish club later announced that it would appeal FIFAs decision. The heavy sanction, which covers the summer and January transfer windows, followed an investigation over the past year into Barcelonas signing of players under the age of 18 from 2009 to 2013. FIFA found the signing of 10 un-named players to be in breach of its rules covering the protection of minors. A fine of 450,000 Swiss francs ($509,000) was also imposed on Barcelona, which was given 90 days "to regularize the situation of all minor players concerned." Barcelona released a 14-point rebuttal, vowing to appeal the decision to the Court of Arbitration for Sport if it did not succeed in reversing the decision with FIFA and be allowed to sign during the transfer window. "Ever since FIFA opened the case the players licenses were cancelled and they have not participated in any official games," Barcelona said in a statement that mostly pointed fingers at the Spanish and Catalan football federation, along with FIFA, while defending La Masia as "an example" of social responsibility in educating young players on and off the field. "These players have all been given the option to remain with the club despite their licenses being revoked," the statement added. The Spanish Football Federation was also found by the world governing body to have violated the rules covering the registration of minors and fined 500,000 Swiss francs ($565,500). Barcelona said in February 2013 that FIFA had sent a communication instructing it not to select six players who are under 18 for its youth matches -- South Koreas Lee Seung Woo, Paik Seung-Ho and Jang Gyeolhee, Theo Chendri of France, Nigerian-Dutchman Bobby Adekanye and Patrice Sousia of Cameroon. The international transfer of players under the age of 18 can only go through if their parents move to the country for non-football reasons. Players between 16 and 18 can move within Europe if certain standards of education and living conditions are met. The punishment, which prevents Barcelona from signing any players until the summer of 2015, leaves recent agreements with Borussia Monchengladbach goalkeeper Marc-Andre Ter Stegen and Croatian teenager Alen Halilovic to join the club in July in limbo. Barcelona has three working days to inform FIFA of an intention to appeal and then a further week to provide its reasons for challenging the punishment. Premier League club Chelsea had a one-year transfer embargo imposed after being found by FIFA to have induced teenager Gael Kakuta to leave Lens, but it was overturned in 2010 by the Court of Arbitration for Sport. FIFA tightened its rules on transferring minors in 2010, to help end what global players union FIFPro described as the equivalent of "child trafficking." FIFA sought to close loopholes which allowed clubs and agents to bring youngsters to Europe on the promise of getting a lucrative contract, only to abandon them without a job or education. In the Barcelona case, FIFA stressed the "interest in protecting the appropriate and healthy development of a minor as a whole must prevail over purely sporting interests." "The disciplinary committee emphasized that the protection of minors in the context of international transfers is an important social and legal issue that concerns all stakeholders in football," FIFA said in a statement. "Above all, the committee highlighted that while international transfers might, in specific cases, be favourable to a young players sporting career, they are very likely to be contrary to the best interests of the player as a minor." Barcelona potentially needs to sign a replacement goalkeeper, with Victor Valdes out of contract at the end of the season and ruled out for seven months this week following knee surgery. Gerard Pique is in need of an assured partner in central defence with the impending retirement of Carles Puyol. The FIFA case threatens to further damage the image of a Catalan football institution that is owned by its members and prides itself as being "more than a club". It is currently grappling with the fallout from last years signing of the 22-year-old Neymar. Barcelona president Sandro Rosell abruptly quit in January as he fights a lawsuit alleging he misappropriated funds by hiding the real cost of Neymars signing from Brazilian club Santos. In February, Barcelona paid 13.55 million euros (then $18.6 million) to Spanish tax authorities to cover any potential irregularities over the transfer, while maintaining its innocence of fraud charges. 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Dwyane Wade took over in the fourth quarter.FIFA mens world rankings (last months position in parentheses) : The Top 20 RANK TEAM POINTS LAST MONTH 1 Germany 1687 1 (-) 2 Argentina 1490 2 (-) 3 Belgium 1457 3 (-) 4 Colombia 1412 4 (-) 5 Brazil 1354 5 (-) 6 Netherlands 1301 6 (-) 7 Portugal 1221 7 (-) 8 Uruguay 1176 8 (-) 9 Switzerland 1135 9 (-) 10 Spain 1132 10 (-) 11 France 1127 11 (-) 12 Romania 1086 12 (-) 13 Italy 1085 13 (-) 14 England 1030 14 (-) 15 Costa Rica 1014 15 (-) 16 Chhile 991 16 (-) 17 Croatia 977 17 (-) 18 Czech Republic 923 19 (+1) 19 Slovakia 920 20 (+1) 20 Algeria 917 21 (+1) Canada is 115th in the May rankings Womens Rankings (last updated Mar.dddddddddddd 27) The Top 10 RANK TEAM POINTS LAST MONTH 1 Germany 2168 1 (-) 2 USA 2158 2 (-) 3 France 2103 3 (-) 4 Japan 2066 4 (-) 5 Sweden 2008 5 (-) 6 England 2001 6 (-) 7 Brazil 1984 7 (+1) T8 Canada 1969 T8 (+1) T8 North Korea 1969 T8 (-1) 10 Australia 1968 10 (-) ' ' '