British journalist Michael Parkinson interviewed Muhammad Ali four times and remembers him as boxing 's biggest ever star .
Between February 25 , 1964 and September 19 , 1964 Muhammad Ali reigned as the undisputed heavyweight boxing champion .
British journalist Michael Parkinson interviewed Muhammad Ali four times and remembers Muhammad Ali as boxing 's biggest ever star .
Between February 25 , 1964 and September 19 , 1964 Muhammad Ali reigned as the undisputed heavyweight boxing champion .