Irvin's contract was selected by the Nationals on Tuesday.
In his first season since undergoing Tommy John surgery in 2020, Irvin spent most of 2022 in Double-A Harrisburg, where he put up a 4.79 ERA and 1.18 WHIP over 73.1 innings. He still has work to do, but there's a chance the 25-year-old righty could work his way onto the big-league roster within the next couple of seasons.