Simplify the following text for a Grade 6 native English-speaking person.
Original: Jason Culina ( , from Croatian Ä ulina ; born 5 August 1980 in Melbourne , Victoria ) is an Australian football ( soccer ) player who currently plays for Newcastle Jets and the Australia national football team .
Simplified: Jason Culina ( born 5 August 1980 ) is an Australian football player . He plays for Gold Coast United and Australia national team .