Riley O'Brien

Holds 13 saves and the role, but 4 blown saves on a playoff-contending Cardinals team is tightening his leash noticeably. St. Louis won't accept much more. Hold cautiously and move him if a quality offer arrives — the Cardinals will find an alternative before the deadline if he keeps blowing games.

Has 12 of 15 save chances converted with a 2.70 ERA and a dominant 23:2 K:BB in 2026. Three blown saves keep this in watch territory rather than locked. Roster confidently in 10-team leagues; monitor in shallower formats with JoJo Romero as the backup plan.

Has 12 of 15 save chances converted with a 2.70 ERA, 0.95 WHIP, and 23:2 K:BB in 2026 — the role is functionally his. Three blown saves and ongoing competition from JoJo Romero and Ryne Stanek keep this in watch territory. Roster confidently in 10-team leagues; monitor in shallower formats.

Has allowed runs in 4 of his last 9 outings — the dominant April form has slipped. Still the Cardinals' primary save option but the leash is shortening. Hold for now; monitor the next 3-4 appearances closely.

4th blown save of the year. Closer Monkey: 'trending toward second half.' Hold for now — the Cardinals haven't named an alternative — but the slider whiff rate is down and George Soriano is the speculative next-up if O'Brien continues to slip.

13 saves, 5-of-6 conversions in May. The Cardinals are winning enough close games to drive volume. Top-15 RP rest of season — claim if somehow on your wire.

11 saves, clean ninth Friday with a strikeout. The Cardinals' rotation is keeping games close; O'Brien's getting plenty of work. Top-15 RP rest of season.

JoJo Romero also blew it Sunday (go-ahead pinch-hit HR). The Cardinals' 9th inning remains a total mess with O'Brien and Romero both failing in save situations. Avoid unless desperate.

Second blown save on Saturday — surrendered 4 hits, 2 ER with a pathetic 7.7% SwStr%. JoJo Romero also lost Sunday (go-ahead pinch-hit HR). The Cardinals' 9th inning is a mess. Avoid unless desperate for saves.