Robles (1-2) was handed the loss and blown save during Saturday's 7-6 defeat at the hands of the Mariners, allowing two runs on three hits and one walk in two-thirds of an inning. He failed to record a strikeout.
After Boston took a one-run lead in the top of the ninth, Robles was brought in for the save opportunity. The 31-year-old recorded the second out with two runners on but surrendered two more singles to lose the game and suffer his league-leading fourth blown save. Matt Strahm and Tanner Houck have recorded the last three saves for the Red Sox, and Robles may not get many more ninth-inning opportunities if other pitchers perform better in the closer role.