Bob Cowper, the only Australian cricketer to score a Test triple century at the MCG, passed away in Melbourne at the age of 84 after a prolonged battle with cancer. Despite maintaining a relatively low profile, Cowper's legacy extends far beyond his on-field achievements. He played a significant behind-the-scenes role in cricket's transition to professionalism and achieved considerable financial success after retiring from the sport at 28.

Malcolm Gray, former chair of the Australian Cricket Board (ACB), described Cowper as unassuming. Cowper's triple century against England in 1966 not only helped Australia retain the Ashes but also served as a strong response to selectors who had initially relegated him to 12th man duties. This feat remained the only Test triple century scored in Australia until Matthew Hayden's 380 against Zimbabwe in 2003. His score of 307 remains the highest score by a Test batsman at the MCG almost 60 years later, surpassing Don Bradman's previous high score.

Cowper, who played 27 Tests between 1964 and 1968, retired from cricket early to pursue a career in stockbroking, eventually settling in Monaco. His blend of cricket and business acumen proved invaluable as the sport began to evolve commercially. A close associate of former Carlton president John Elliott, Cowper played a key role in the Elders-Henry Jones IXL merger in 1983.

Cowper profoundly influenced Ian Chappell regarding cricketers' rights to better compensation and conditions. When Kerry Packer launched World Series Cricket in 1977, Cowper acted as a vital advisor. From 1987 to 2001, Cowper served in his ICC role, during which cricket's commercial value increased substantially. This era saw South Africa's re-integration into international cricket and the introduction of innovations such as television replays for umpiring decisions and neutral umpires. He was also one of cricket's early match referees.

Cowper was an early advocate for the use of technology in umpiring. In 1993, he officiated a limited-overs triangular series that experimented with video replays and became convinced of technology's potential. He foresaw the future role of technology, even when met with resistance from Australian umpires and administrators. Cowper’s Monaco consulting business facilitated early negotiations for the ICC’s lucrative global events deals, which now underpin international cricket's financial structure.