Walker struck out one batter in a scoreless inning and earned a save over the Royals on Sunday.
Walker made his first appearance since coughing up two runs against Baltimore on Thursday. He hit MJ Melendez to start his outing Sunday but retired the next three batters to finish off the 2-0 win. Walker has converted each of his nine save chances since Camilo Doval was briefly sent to Triple-A Sacramento on Aug. 9. Walker owns an impressive 1.96 ERA with a 99:17 K:BB through 78 innings this season.