O'Brien allowed an unearned run and struck out one without giving up a hit or a walk over one inning to earn the save in Wednesday's 8-6, extra-inning win over the Dodgers.
O'Brien surrendered the run on a groundout in the 10th inning, which plated the automatic runner. After a bumpy end to August with seven runs allowed over his final 2.2 innings of the month, O'Brien will be looking to stabilize in September and started off the new month well Wednesday. He's 35-for-40 on save chances this season, leading the National League in conversions and trailing only Bryan Baker (39) in the majors. O'Brien has added a 3.88 ERA, 1.20 WHIP and 55:23 K:BB across 55.2 innings.