Banja Luka | Luka Bonačić | Zsolt Luka | Luka Modrić | Oštra Luka | Luka Bloom | Kadina Luka | FK Borac Banja Luka | Faimalaga Luka | Armand Krajnc | Luka Magnotta | Luka Lipošinović | Luka Kigen | FC Luka Koper's U19 team |
After his career as a footballer, Ružnić became a football agent with his clients including; Josip Iličić, Jasmin Kurtić, Armin Bačinović, Dalibor Volaš, Aleksander Rajčević, Robert Berić, Aleš Mertelj, Aljaž Struna, Siniša Anđelković, Luka Krajnc, Elvis Bratanović, Anej Lovrečič, Jasmin Handanovič and Anton Žlogar.