Hatch will start Tuesday's game against Boston, Mitch Bannon of SI.com reports.
Hatch was promoted to the big club Monday afternoon, and he won't need to wait long to make his season debut. He's found plenty of success at Triple-A Buffalo in 2021, accruing a 2.15 ERA and 1.07 WHIP with 29 punchouts across 29.1 innings after posting similar numbers in his big-league debut last year.