Simplify the following text for a Grade 8 native English-speaking person.
Original: Dragan StojkoviÄ ( born 3 March 1965 ) is a former Serbian ( formerly Yugoslavian ) football player . He has played for Yugoslavia national team and Serbia national team .
Simplified: Dragan StojkoviÄ ( ; ( born March 3 , 1965 in NiÅ , Serbia , SFR Yugoslavia ) , also known under the nickname Piksi is a Serbian former footballer and current manager of J. League side Nagoya Grampus .