McCullers will start the third game of the season, March 31, against Texas, Glenn Sattell of MLB.com reports.
McCullers had a strong camp, giving up just one run with a 15:4 K:BB over 12.2 innings. As the third starter, he's in line for a career high in innings pitched. The right-hander's previous best was 125.2 innings as a rookie in 2015.