His grandfather Božidar Hirschsohn was a notable Croatian Jewish stage actor in Varaždin who fought with the Partisans during World War II.

The Eurocard Open was one of the tour's Mercedes Super 9 (now Masters) events and the semi-final came down to a third set tiebreak, but the Croatians were unable to defeat Jacco Eltingh and Paul Haarhuis.

Hiršzon and Ivanišević also played together at the 1996 Atlanta Olympics,[5] reaching the quarter-finals, where they were eliminated by eventual bronze medalists, David Prinosil and Marc-Kevin Goellner, from Germany.

The Croatians had made it into the quarter-finals with wins over Jonas Björkman/Nicklas Kulti, the fourth seeds, followed by a victory over the Bahamian pairing of Mark Knowles and Roger Smith.

[6] As a singles player he didn't make an impression on the ATP Tour, but did have a win over world number 17 Guillermo Pérez Roldán at Prague in 1990, although the Argentine did have to retire hurt.