Simplify the following text for a Grade 6 native English-speaking person.
Original: JosÃ JadÃ lson dos Santos Silva ( born December 4 , 1977 in MaceiÃ , Alagoas ) , most commonly known as JadÃ lson , is a Brazilian football defender who currently plays for GrÃ mio .
Simplified: JosÃ JadÃ lson dos Santos Silva ( born 4 December 1977 ) is a Brazilian football player .