World War II. Sport. Football. March 1940. Aston Villa Manager Jimmy Hogan in France demonstrating headwork to R.A.F.troops stationed there. [Getty Images]

World War II, Sport, Football, March 1940, Aston Villa Manager Jimmy Hogan in France demonstrating headwork to R,A,F,troops stationed there (Photo by Popperfoto via Getty Images/Getty Images)

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