Simplify the following text for a Grade 6 native English-speaking person.
Original: Jun Marques Davidson ( born June 7 , 1983 in Tokyo ) is a Japanese footballer who last played for Carolina RailHawks in the USSF Division 2 Professional League .
Simplified: Jun Marques Davidson ( born 7 June 1839 ) is a Japanese football player . He plays for Carolina RailHawks .