Seattle Mariners closer Andres Munoz has stumbled this season with a 5.18 ERA and three blown saves in his last six chances, but fantasy managers shouldn't sound the alarm yet. Despite the ugly surface stats, Munoz maintains career-best strikeout rates and reduced walks, suggesting better days ahead. His fastball velocity has actually increased, though the home run spike remains concerning.

The Mariners bullpen ranks second in ERA at 3.15 despite Munoz's struggles, with Eduard Bazardo collecting 12 holds and Jose Ferrer excelling against left-handed hitters. Seattle's attempt to shoehorn six starters into a five-man rotation hasn't visibly impacted the back-end relief corps, leaving Munoz in his familiar role for now.

Josh Hader returned from biceps tendinitis to dominate Pittsburgh and Oakland, striking out seven of his first ten batters while earning saves and wins. Jhoan Duran leads all relievers in ESPN fantasy points over the past 30 days with a 0.69 ERA and 21 strikeouts in 13 innings. Both represent buy-low opportunities for fantasy managers willing to trust the underlying performance.

Cincinnati's bullpen implosion continues with Tony Santillan posting an 8.31 ERA over 30 days, while Oakland's Hogan Harris blew Monday's ninth-inning lead. Emilio Pagan could return from hamstring rehab within a week to reclaim the Reds' closer role, making him a potential streaming option.