Simplify the following text for a Grade 6 native English-speaking person.
Original: Alvin Warren Ceccoli ( born 5 August 1974 in Sydney , Australia ) is an Australian football ( soccer ) player of Sammarinese heritage who played for three A-League clubs ( Sydney FC , Central Coast Mariners and Adelaide United ) and was capped internationally for Australia .
Simplified: Alvin Ceccoli ( born 5 August 1974 ) is an Australian football player . He has played for Australia national team .