Fernandez signed a minor-league contract with the Nationals on Tuesday.
Fernandez put up a 5.88 ERA and 1.71 WHIP through 49 innings this season with the Blue Jays' Triple-A affiliate in Buffalo before getting released earlier in August. He'll now sign on with the Nationals as organizational depth. The 26-year-old righty logged a 2.41 ERA through 18.2 innings in the majors last season, though he seems unlikely to make it back to the bigs in 2023.