Munoz (3-7) allowed a run on two hits and struck out one over two-thirds of an inning, taking the loss Sunday versus the Rangers.
Munoz (3-6) got the win against the Rangers on Saturday, firing a perfect ninth inning.
Munoz picked up the save over the Padres on Wednesday, striking out two over a perfect ninth innings.
Munoz (elbow) allowed two earned runs on a hit and a walk over one inning of relief in a win over the Athletics on Thursday.
Munoz (2-5) was charged with a blown save and took the loss Tuesday against the Dodgers, allowing three runs on three hits and two walks while striking out a batter over 1.1 innings.
Munoz (2-4) took the loss Thursday against Detroit, allowing one run on one hit while picking up a strikeout in one-third of an inning.
Munoz earned a save Sunday against the Astros after striking out the side in the ninth inning.
Munoz (back) picked up the loss in the Mariners' extra-inning defeat against the White Sox, allowing an unearned run in the 10th inning.
Munoz had an MRI and bone scan on his back come back clean, but he received an injection Tuesday to address the lingering soreness, Ryan Divish of The Seattle Times reports.
Munoz (back) recorded one strikeout in a perfect eighth inning Sunday against the Royals. He said he "felt weird" out on the mound and was happy with the outing even though he didn't feel like he had his best stuff or command, per Ryan Divish of The Seattle Times.