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Former Cleveland Browns Hall of Fame running back Jim Brown presides over a meeting of top African-American athletes on June 4, 1967, to show support for boxer Muhammad Ali’s refusal to fight in Vietnam. Those present are: (front row) Bill Russell, Muhammad Ali, Jim Brown, Lew Alcindor; (back row) Carl Stokes, Walter Beach, Bobby Mitchell, Sid Williams, Curtis McClinton, Willie Davis, Jim Shorter, and John Wooten.

https://theundefeated.com/features/the-cleveland-summit-muhammad-ali/