PITTSBURGH (AP) — A game between the Washington Nationals and Pittsburgh Pirates has been postponed because of rain in the forecast. It will be made up as part of a split doubleheader on Saturday. The first game is scheduled for 1:35 p.m. and the nightcap for 6:40 p.m. The game was called off about a half hour before the scheduled start Friday. While no rain was falling, the radar showed a strong line of severe thunderstorms heading toward Pittsburgh. Luis Ortiz will be the Pirates starting pitcher in Game 1 of the doubleheader followed by Mitch Keller. The Nationals will start two rookie left-handers — DJ Herz and Mitchell Parker.