Union Berlin official fan shop shirt of Hristo Koilov for the 2000/2001 season. The midfielder went on to make 110 appearances for the club over 4 years, scoring 10 goals. On May 26, 2001, Koilov played in the historic DFB Pokal Final against Schalke 04 (0:2). He was capped 1 time for the national team.