The Rangers informed Allard on Sunday that he'll be included on the Opening Day roster, independent baseball journalist Jeff Wilson reports.
Allard is expected to serve as a bulk-relief or multi-inning option for the Rangers after he was most commonly deployed as a traditional starter over parts of his first three big-league seasons in Texas. The southpaw has made two Cactus League appearances for the Rangers, working five innings in total and giving up four runs (three earned) on five hits and one walk while striking out six.