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Sala transfer provides glimpse into football 'arms race'

(CNN)A Facebook photograph shows a black dog sitting in a house, looking toward a clump of trees as the sun starts to set. It's a picture that leaves a sense of a dog waiting patiently for its owner to return.Called Nala, the rescue Labrador's owner was Argentine footballer Emiliano Sala, who late on Thursday was confirmed dead after he went missing over the English Channel last month when the plane he was traveling in to join his new club Cardiff City disappeared. Sala had recently been sold by French club FC Nantes to the Premier League club.The Facebook picture was posted by Sala's sister Romina on February 2 and ever since the footballer went missing, the family had held on to the thinnest of hopes that he had somehow survived.And yet, ...