Cassius Marcellus Clay, Jr.

He was an entertainer. He was a groundbreaking boxer. He oozed with talent BUT let's just remember one thing:

He lost FIVE fights. (Out of 61).

The late, great Rocky Marciano lost Zilch, Zero, Nil  in 49 fights.

So. Who was actually the greatest?

Even so:

Happy Seventieth Birthday - I really hope the Parkinson's Disease remains under control!