The Dodgers placed Blake Treinen on the 15-day injured list on June 20, 2026, after elbow inflammation flared up in the right-hander’s throwing arm, and called up Chayce McDermott from Triple-A to fill the opening. The move came one day after Treinen threw an inning of scoreless work in the Dodgers’ 6-5 win over the Orioles.
That is why Treinen is the name drawing searches now. He is not out because of a structural injury. Testing did not show damage, but the soreness he felt the day after his last outing was enough to send him to the injured list anyway, and the roster move was made as the Dodgers continued to juggle a bullpen hit hard by injuries.
McDermott was the logical recall because the Dodgers needed a pitcher immediately, even if not necessarily one expected to pitch right away. A corresponding move had to be made once Treinen went on the injured list, and a fresh arm from Triple-A was the cleanest way to keep the staff stocked while the club waits on healthier options. The Dodgers have been using Treinen in lower-leverage situations lately, so the absence still matters even if he was not working the highest-pressure innings.
The bullpen picture around him is crowded with uncertainty. The Dodgers had eight relievers and 12 pitchers total on the injured list entering Sunday’s action, yet their bullpen still ranked 10th of 30 teams in ERA. Brock Stewart was four games into a minor league rehab assignment and could be back in the Los Angeles pen by Monday, while Blake Snell was throwing off the bullpen mound to a standing catcher a day earlier after a NanoNeedle procedure on his left elbow.
For Treinen, the immediate question is not whether the elbow is broken down, but how long inflammation alone will keep him sidelined. For the Dodgers, the answer arrives in the only way bullpen problems usually do: one roster move at a time, with McDermott arriving now and the next opening likely hinging on when Treinen can throw again without feeling it the next day.
