Two weeks before Muhammad Ali beat Sonny Liston for the heavyweight championship, the boxer’s trainer met secretly with FBI agents and identified members of the Nation of Islam who were associates of Ali, according to bureau records. In a "confidential" February 1964 memo to FBI Director J. Edgar Hoover, a supervisor in the bureau’s Miami office reported on a meeting with “trainer-manager” Angelo Dundee and Dundee’s brother Chris, who was promoting the fight between Liston and Ali (who was then still known as Cassius Clay).