Michael Phelps has launched a scathing attack on USA Swimming's leadership, with the 23-times Olympic gold medallist branding the body weak and demanding sweeping reforms after what he sees as years of organisational decline.

The Olympic record breaker called out ‘poor leadership’ within the organisation and asked for a review of the board

Michael Phelps is arguably the greatest swimmer of all time, but he's not pleased with the way the next generation of swimmers are being developed.