Manager Scott Servais said Sunday that Sadler will undergo season-ending shoulder surgery, Ryan Divish of The Seattle Times reports.
Servais said earlier in the day that Sadler would be forced to miss time due to shoulder soreness, and he'll ultimately be sidelined for the entire 2022 campaign after undergoing the procedure. It's a discouraging development for Sadler, who had a strong performance in 2021 with a 0.67 ERA and 0.72 WHIP in 40.1 innings across 42 relief appearances.