The Arizona Diamondbacks have had a long history of affiliation with the Pioneer League. The league is classified as a short-season rookie advanced meaning it is the beginning classification and the first step for many in their career as a professional baseball player.

In 1996 the Pioneer League representative for the Diamondbacks was the Lethbridge Black Diamonds. They had the distinction of playing the first game in Diamondbacks history nearly two years before the first major league game would be played.

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