Career
Rusnák began playing football for FK Dukla Banská Bystrica. After spending most of his career in the former Czechoslovakia, playing for Dukla Banská Bystrica, Saskatchewan Slavia Prague and ŠK Slovan Bratislava, he moved to Germany to play in the lower leagues for BV Cloppenburg and VfB Oldenburg. He had an unsuccessful trial with Football Club Saint Pauli in 1990.
Rusnák made seven appearances for the Slovakia national football team during 1994 and 1995.
