Career
He spent his career at HŠK Concordia Zagreb during the early years of Yugoslavia. At age 4, he and his father moved to Croatia where Zvonko eventually established himself at one of the country"s top clubs, HŠK Concordia. Initially trained as an athletic runner, he began to play football for the Yugoslavian national teams, making a total of 10 caps.
Upon the foundation of the temporary Croatian team, Jazbec played for his adopted background heritage in 3 international matches, including the very first match against Switzerland.
He coincidentally enough also scored a goal during his tenure.