Simplify the following text for a Grade 7 native English-speaking person.
Original: NebojÅ a KrupnikoviÄ ( ; born 15 August 1973 in Arilje , SFR Yugoslavia ) is a Serbian retired football player .
Simplified: NebojÅ a KrupnikoviÄ ( born 15 August 1973 ) is a former Serbian football player .