Munoz said after Tuesday's game that he is dealing with a bit of soreness in his elbow, Ryan Divish of The Seattle Times reports.
Munoz noted that the issue wasn't serious enough to make him unavailable in a save situation Tuesday, but it may still be something worth keeping an eye on. The 25-year-old has bounced back nicely from his three-run outing against the Dodgers on Aug. 20, allowing one earned run and striking out eight batters across his last 3.2 innings.