Simplify the following text for a Grade 6 native English-speaking person.
Original: Ã der Aleixo de Assis , was also known as Ã der or Ã der Assis ( born May 25 , 1957 in Vespasiano , Brazil ) , is a former Brazilian footballer .
Simplified: Ã der Aleixo de Assis ( born 25 May 1957 ) is a former Brazilian football player .