Smith was placed on the injured list with an undisclosed injury Saturday, Corey Brock of The Athletic reports.

EDGE Analysis

Smith last pitched Sep. 29, when he was asked to record only one out. Since joining the Mariners on July 27, he has maintained a strong 2.12 ERA and 0.94 WHIP with 17 strikeouts across 17 innings. Andres Munoz was reinstated from the injured list Saturday and could help fill in for Smith's absence out of the bullpen.