Simplify the following text for a Grade 7 native English-speaking person.
Original: Cristian Alberto GonzÃ lez Peret , better known as Kily GonzÃ lez ( born 4 August , 1974 ) is an Argentine footballer currently playing for Rosario Central .
Simplified: Kily GonzÃ lez ( born 4 August 1974 ) is an Argentine football player .