Michael Phelps, the most decorated swimmer in Olympic history, once called out USA Swimming, claiming he's "both sad and angry" about the "current state" of the program.

Michael Phelps is to swimming what Tom Brady is to football - and arguably better. So when he speaks on the state of the USA Swimming organization, people are inclined to listen. Phelps has been speaking out against the leadership at the national swimming organization lately.

The 23-time Olympic gold medalist gave some words of wisdom to the Baltimore Ravens before offering up swim lessons.