Kolpak ruling, which extended Bosman to countries with an associate trading relationship with the EU, most notably the ACP countries
Association football | association football | football (soccer) | National Football League | American football | Forward (association football) | college football | Goalkeeper (association football) | Defender (association football) | Football (soccer) | Football in Italy | England national football team | National Basketball Association | Australian Football League | American Association for the Advancement of Science | Australian rules football | Association of Tennis Professionals | Argentina national football team | American Library Association | World Boxing Association | National Collegiate Athletic Association | Canadian Football League | American Association | American Heart Association | Mexico national football team | Brazil national football team | Arena Football League | the Football League | Football in England | Football League First Division |
Yartey began his youth and professional career with Ghanaian club All Blacks F.C., before joining S.L. Benfica on a 1-year loan deal with a buy option at the end of the contract.
In July 2012, Osei signed a contract with the twenty-two times champions of Ghana and two times champions of Africa, Asante Kotoko.