FILE - In this May 30, 2006, file photo, Argentina's Lionel Messi dribbles past an unidentified Angola player during an exhibition soccer match in Salerno, Italy. In Spain, young soccer players can sign professional contracts when they turn 16, the minimum work age stipulated by Spanish law. Before that, children join training academies run by soccer clubs that field youth teams in amateur leagues. The most well-known example in Spain is Barcelona's "La Masia" academy, where Lionel Messi started training at the age of 13 when his family emigrated from Argentina. (AP Photo/Francesco Pecoraro, File)