Socceroos great Craig Foster has delivered a frank assessment of FIFA's culture and governance, using a high-profile television appearance to unpack what he characterises as the organisation's rotten core.

The former Australian international and prominent football advocate appeared on the Today show to share his views on the governing body's deep-seated problems, pulling no punches in his critique of world football's most powerful institution.

Foster, long regarded as one of Australia's most outspoken voices on the game, has previously drawn attention to issues of integrity and accountability within global football administration. His latest comments continue that tradition of public scrutiny directed at FIFA's leadership and operations.