Kostadin Zelenkov (; born 11 December 1977) is a Bulgarian football player, currently playing for Brestnik 1948 as a midfielder. References 1977 births Living people Bulgarian footballers First Professional Football League (Bulgaria) players Second Professional Football League (Bulgaria) players PFC Spartak Pleven players PFC Vidima-Rakovski Sevlievo players FC Lyubimets players FC Chernomorets Balchik players Association football midfielders