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Flags of the United States of America and the Union Jack of Great Britain at Wembley Stadium before the International Series London - Denver Broncos v San Francisco 49ers (Photo by AMA/Corbis via Getty Images)

Flags of the United States of America and the Union Jack of Great Britain at Wembley Stadium before the International Series London - Denver Broncos v San Francisco 49ers (Photo by AMA/Corbis via Getty Images)