Prskalo began his senior career with Velež Mostar in the Yugoslav First League.
He made 168 appearances in nine seasons with the club, establishing himself as a key defender in the squad managed by Sulejman Rebac.
He emigrated to Australia for the inaugural season of the National Soccer League in 1977,[1] joining Marconi Fairfield where he featured in every match under former Socceroos head coach Rale Rasic.
His first official 'A' international came later that year against Taiwan in a friendly played in Taipei.
His only international goal was a ninth-minute penalty against Czechoslovakia the following year at Olympic Park in Melbourne.