June 14, 2025 10:28 AM : The Nationals placed Chafin on the 15-day injured list with a right hamstring strain Saturday, retroactive to Wednesday.
Analysis: Chafin has turned in a 3.18 ERA and 2.03 WHIP across 11.1 innings since joining the Nationals in May, but he hasn't appeared in a game since Sunday due to his hamstring. He'll now be sidelined until at least late June, and Ryan Loutos will come up from Triple-A to fill the opening in Washington's bullpen.