Anthony Mundine: $30 Million
Before transitioning to professional boxing, Anthony Mundine was the highest-paid player in Australia's National Rugby League. In 2000, he embarked on a career change and began his boxing journey. He secured a national super-middleweight title within a year, eventually claiming the WBA super-middleweight title by 2003. Despite a complex public relationship, fans tuned in to watch his fights, contributing to his multi-million-dollar earnings. Mundine's career record stands at 47 wins and eight losses.