As we gear up for the 2025 fantasy baseball season, keep an eye on several relief pitchers whose impressive 2024 stats may disguise concerning underlying metrics. JoJo Romero of the St. Louis Cardinals and Jason Foley of the Detroit Tigers had standout seasons, but their advanced stats suggest potential regression. Romero's sinker and Foley's reliance on hard-hit balls raise red flags, indicating they may not replicate their 2024 performances. Robert Suarez from the San Diego Padres and Ryan Helsley from the Cardinals also face similar scrutiny, with both pitchers showing elevated xERA and SIERA numbers that could signal trouble ahead. For fantasy managers, understanding these nuances is critical to avoid overvaluing players based on surface statistics alone. Proceed with caution during drafts and consider alternatives with more stable metrics.