Castillo (2-5) gave up two runs (one earned) without recording an out Saturday to blow his third save of the season in a 5-4 extra-inning loss to the Rangers.

EDGE Analysis

Entering the game in the bottom of the 10th inning with a chance to record his first save as a Mariner, Castillo instead saw Jonah Heim blast a 2-2 slider over the fence in center field for a walkoff homer. The right-hander should get a fairly long leash at closer as the team tries to justify flipping Kendall Graveman to the division-rival Astros in the middle of a playoff chase, but if Castillo continues to struggle in a new uniform, Paul Sewald and Drew Steckenrider remain at the ready for high-leverage work.