Erceg earned the save in Thursday's 7-4 win over the Nationals, striking out one in a perfect ninth inning.
Erceg's now converted his last six save opportunities, allowing just one earned run while striking out 13 over 10.2 innings in that span. The 29-year-old right-hander's ERA is down to 3.36 with a 1.05 WHIP and 72:16 K:BB across 61.2 innings between the A's and Royals this season.