K.S.C. Lokeren Oost-Vlaanderen
During his career Colceag played with Unirea Focșani, FC Dinamo București, FC Universitatea Cluj, FC Naţional București, AFC Rocar București, Croatian NK Zagreb, Politehnica Iaşi, Belgian K.S.C. Lokeren Oost-Vlaanderen, Mexican Tigres Ciudad de Juarez, FC Argeş Piteşti, Czech FC Viktoria Plzeň, Greek clubs Panionios F.C. and Panserraikos F.C. and finished his career back in Romania with FC Brașov in 2006.