Francisco Liriano knows what it feels like to pitch an entire game without allowing a hit. Good as he was Wednesday night, the Pittsburgh Pirates left-hander wasn't about to allow his mind to start wandering in that direction too soon. Liriano did not allow a hit until the sixth inning against a struggling and depleted Nationals lineup, and Pedro Alvarez homered off an otherwise-dominant Stephen Strasburg, leading Pittsburgh past Washington 4-2.