Heisman Trophy Watch 2015: Top 15 dark horse candidates

Jan 2, 2015; Fort Worth, TX, USA; Pittsburgh Panthers running back James Conner (24) goes in for 5-yard touchdown against the Houston Cougars during the second half of the 2015 Armed Forces Bowl at Amon G. Carter Stadium. Houston won 35-34. Mandatory Credit: Ray Carlin-USA TODAY Sports

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