http://www.estadao.com.br/especiais/2010/06/copa_jogadores.shtm They had 117 players in South Africa (then Germany, Italy, Spain and France). Mexico the best in Concacaf (and the Americas) with 21 (7 for other contries). check out the graphic!
Ghana and Chile were the most diverse National teams. England, Germany and Italy had all their players from local leagues.
Yeah, this doesn´t have much to do with CONCACAF. If the thread starter wants this reopened and moved he can pm one of us.