The Pittsburgh Pirates already had several returning relievers who impressed during the 2023 season.
Closer David Bednar was named an All-Star for the second-consecutive season and was tied for the National League-lead with 39 saves.
Rookie right-hander Carmen Mlodzinski burst onto the scene and finished with a 2.25 ERA across 35 relief appearances. Ryan Borucki emerged as a legitimate left-handed option after he was signed to a minor league deal early in the season.
Colin Holderman and Dauri Moreta each generated good results, and appear to have pitched even better than the surface-level numbers indicate when looking at the advanced metrics.
The bullpen looked like it would already be a strength for the Pirates for the upcoming season, and it now looks even stronger.