Zurich, Rabi'II 13, 1436, Feb 2, 2015, SPA -- Senegal international Diafra Sakho and his English club, West Ham, face possible punishment from FIFA for a potential violation of regulations relating to the striker's availability for the African Cup of Nations. Sakho withdrew from Senegal's squad before the tournament began on Jan. 17, citing a back injury, but played for West Ham in its FA Cup fourth-round match against Bristol City on Jan. 25. He came off the bench to score the winner in a 1-0 victory. World football's governing body announced Monday it has opened a disciplinary case, AP reported. Senegal finished third in Group C at the African Cup and failed to advance to the quarterfinals. The final is on Sunday. --SPA 21:10 LOCAL TIME 18:10 GMT www.spa.gov.sa/w