Military boxing in English Army; World War One.
Shot from outside corner of ring. Boxers shake hands - or at least touch gloves. Boxer seated in corner; as an official standing in ring reads aloud from a document - rules?
Cut to boxing match in progress; both men swinging; one throws punch that knocks the other down; other boxer backs off; and the man just lies stretched out in the ring for several seconds before getting up on his own. Not a real knockout. Shot of trainers fanning the boxers with towels. Boxers in action; throwing punches again.