Jared Triolo hit his first major league home run, a three-run drive as a pinch hitter in the seventh inning, and the Pittsburgh Pirates beat the Cincinnati Reds 4-2 in a doubleheader opener Sunday. “A good moment to do it, for sure,” Triolo said. Pittsburgh overcame a 2-0 deficit against the Reds, who lost for the ninth time in 11 games.