The Nationals recalled Adon from Triple-A Rochester on Tuesday.
Adon owns a 5.40 ERA and 1.66 WHIP through 66.2 innings in the minors this season, though he will be called upon nonetheless to give the Nationals another fresh arm in the bullpen. He's appeared in just two MLB games in 2024, allowing three earned runs in five innings while striking out three batters and walking three.