Evaluating the running game was clearly the priority Saturday night for the Arizona Cardinals in Week 2 of the preseason against the Minnesota Vikings. Andre Ellington, who's locked in as the starter, had two carries for 5 yards and a reception for 16 yards. But Saturday wasn't about him. It was about seeing how Jonathan Dwyer, Stepfan Taylor and Robert Hughes can fill in behind Ellington as a running back corps with defined roles rather than a defined ranking.via ESPN.com - NFL Nation http://ift.tt/1tbcHG6

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