Morton will pitch either the second game of the regular season or the third, Brian McTaggart of the Astros' official site reports.
Manager A.J. Hinch sketched out the first few games of the season, naming Dallas Keuchel the Opening Day starter followed by Morton and Lance McCullers in an order to be determined. Morton made his penultimate spring start Friday, allowing three hits and two walks while striking out four over 4.1 innings. He's allowed two earned runs, 10 hits and six walks while striking out 17 over 17.1 innings this spring.