Simplify the following text for a Grade 5 native English-speaking person.
Original: Mark Dennis GonzÃ lez Hoffman ( born 10 July 1984 ) , commonly known as Mark GonzÃ lez , is a South African-born Chilean footballer whose preferred position is as a left winger .
Simplified: Mark GonzÃ lez ( born 10 June 1984 ) is a Chilean football player .