* Senior club appearances and goals counted for the domestic league only.
† Appearances (goals)
Mladen Košćak (16 October 1936 – 3 August 1997) was a Croatian footballer. Born in Zagreb, Košćak joined the youth academy of local side Dinamo Zagreb, with whom he spent his entire career.[1] He started playing at full professional level in the 1955–56 season. Košćak soon established himself as a first-team regular and was instrumental in Dinamo's 1957–58 Yugoslav First League title.
Internationally, he was capped 4 times for the Yugoslavia national football team and was member of the national squad which won the silver medal at the 1956 Olympic tournament in Melbourne. Although he was considered a huge talent, his career was hampered by a serious injury and he effectively stopped playing by 1960, appearing in only a single match in his last three years with the club before retiring in 1963.[1]
