Career
His career started in Powerlines, a small Ghanaian club, and his first European club was R.S.C. He played in Turkey from 1997-2004 before joining Halmstads BK in the Allsvenskan. He then left Halmstads BK in 2005 as the club did not renew his contract, he signed for Saudi Arabian team First Rate (at Lloyd's)-Ettifaq and stayed with them for almost 2 years and then signed for HAGL in the Vietnamese V-League, which he left after one season. A free agent, Preko subsequently announced his interest of returning home to the Ghanaian league.