PITTSBURGH, PA - JULY 24: James McDonald #53 of the Pittsburgh Pirates looks on from the dug out during the game against the Chicago Cubs on July 24, 2012 at PNC Park in Pittsburgh, Pennsylvania. The Cubs defeated the Pirates 5-1. (Photo by Justin K. Aller/Getty Images)
Michael McKenry starts, as expected, but Andrew McCutchen gets the day off, so Starling Marte will get his first career major-league start in center field.
UPDATE: Johnson has been traded to the Diamondbacks for Bobby Borchering and Marc Krauss, so Martinez is batting third, Moore is batting fourth and playing third, and Steve Pearce is batting fifth and playing first.