Simplify the following text for a Grade 9 native English-speaking person.
Original: Amarildo Tavares da Silveira , also known as Amarildo ( ; born in Campos , Rio de Janeiro , June 29 , 1939 ) was a Brazilian football ( soccer ) player who played as a striker .
Simplified: Amarildo Tavares da Silveira ( born 29 June , 1939 ) is a former Brazilian football player .