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PITTSBURGH, PA - AUGUST 04: Jared Hughes #46 of the Pittsburgh Pirates pitches to Jake Arrieta #49 of the Chicago Cubs in the fifth inning as the sun sets during the game at PNC Park on August 4, 2015 in Pittsburgh, Pennsylvania. (Photo by Jared Wickerham/Getty Images)

PITTSBURGH, PA - AUGUST 04: Jared Hughes #46 of the Pittsburgh Pirates pitches to Jake Arrieta #49 of the Chicago Cubs in the fifth inning as the sun sets during the game at PNC Park on August 4, 2015 in Pittsburgh, Pennsylvania.  (Photo by Jared Wickerham/Getty Images)