Simplify the following text for a Grade 7 native English-speaking person.
Original: `` Vampeta '' , born Marcos AndrÃ Batista dos Santos , ( born 13 March 1974 , in NazarÃ ) is a former Brazilian professional football player and current coach of GrÃ mio Osasco .
Simplified: Vampeta ( born 13 March 1974 ) is a former Brazilian football player .