St. Louis Cardinals Bullpen Hierarchy
The Milo bullpen hierarchy shows the current closer, high-leverage relievers, and next-in-line save candidates based on bullpen roles and recent usage.
Last updated:
Model date (PT): 2026-04-20
Current Closer
Closer: Riley O'Brien
Role stability score: 78
Recent saves: 4
Next Closer
Next Closer: JoJo Romero
If the current closer is unavailable, the most likely pitcher to receive save opportunities is JoJo Romero.
Bullpen Depth Chart
| Pitcher | Role | Save Probability | Recent Usage |
|---|---|---|---|
| Riley O'Brien | Closer | 13% | 4 saves in last 14 days; pitched 0d ago |
| JoJo Romero | Setup | 2% | Pitched 0d ago |
| Ryne Stanek | Setup | 8% | Pitched 0d ago |