Simplify the following text for a Grade 5 native English-speaking person.
Original: Goran Rubil ( born 9 March 1981 in Slavonski Brod , SR Croatia , SFR Yugoslavia ) is a Croatian football midfielder who plays for Asteras Tripolis in Greek Super League .
Simplified: Goran Rubil ( born 9 March 1981 ) is a Croatian football player .