Aug 07, 2012; Pittsburgh, PA, USA; Pittsburgh Pirates left fielder Starling Marte (bottom right) slides into third base ahead of the tag by Arizona Diamondbacks third baseman Chris Johnson (28) as third base umpire Brian O'Nora (top right) and Pittsburgh Pirates third base coach Nick Leyva (16) look on during the first inning at PNC Park.; Mandatory Credit: Charles LeClaire