O'Brien (3-8) allowed two runs on a hit and a walk while striking out two over one inning, taking the loss and a blown save in Saturday's 6-5 loss to the White Sox.
O'Brien was tagged for a two-run home run by Randal Grichuk in the ninth inning. With three blown saves over his last five appearances, O'Brien is limping to the finish line in 2026. He's now at a 4.20 ERA, 1.27 WHIP and 60:27 K:BB through 60 innings while converting 36 of 44 save chances.