The San Francisco Giants icon is one of the greatest baseball players of all time. A new HBO documentary, "Say Hey, Willie Mays!" tells his story, from growing up in the Jim Crow South to capturing the imaginations of fans across the country. Chronicle national baseball writer and Mays biographer John Shea, who is featured in the film, joins host Cecilia Lei to discuss the racism Mays faced when the Giants moved from New York to San Francisco after the 1957 season, his quiet civil rights activism, and why everyone should learn about his legacy. | Unlimited Chronicle access: sfchronicle.com/pod

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