O'Brien earned the save in Wednesday's 1-0 win over the Angels, allowing no hits and two walks with three strikeouts in a scoreless ninth inning.
O'Brien was summoned to protect a one-run lead in the ninth inning and didn't allow a ball in play, working around two walks by striking out the side. It was an encouraging rebound after the 31-year-old melted down Monday, and he's now held opponents scoreless in nine of his past 10 appearances. On the year, he's 26-for-31 in save chances to go along with a 3.67 ERA, 1.22 WHIP and 44:17 K:BB across 41.2 innings.