On the Australian National Team, Brondello joined the team before the age of 18 and remained on the Opals for 17 years, and her 302 games made Brondello the third most capped Australian player, behind Robyn Maher and Karen Dalton. Brondello's tournaments with Australia include four World Championships, with two bronze medals, and four Olympic tournaments, with two silver medals and a bronze. Twice she sat out of the WNBA due to Olympic commitments, in 2000 and 2004. The 2004 tournament in Athens turned out to be Brondello's last major event, with her afterwards investing in a coaching career.