Joe Louis, Muhammed Ali, Lombardi, Joe Namath, the U.S. Women's Soccer team, Howard Cosell, the list goes on and on. Award winning documentarian Joe Lavine told all their stories, the good and bad of some of the greatest sports personalities of all time and he's not done yet. After four decades, what stories are left to tell and why he'll never retire.

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Music for "Upside of 40 with Sean Mooney" is provided by Immune System. To hear more from Immune System, head to http://immunesystem.bandcamp.com