The 2025 fantasy baseball season is primed for action, with teams shaking up their bullpens ahead of spring training. Notably, Emmanuel Clase is projected to lead the saves chart with 41, flanked by elite arms like Josh Hader and Raisel Iglesias, both with 36. The American League features exciting closer situations, particularly in Oakland with Mason Miller, who showcases an impressive 101 mph fastball and a staggering strikeout rate that could redefine the closer role. In Baltimore, Félix Bautista returns from injury, hoping to reclaim the top closer spot after a stellar 2023, while the Red Sox juggle a mix of veterans and upstarts vying for save opportunities.

As teams finalize their rosters, keep an eye on potential waiver wire gems. For instance, the Royals’ Carlos Estévez might reclaim closing duties, while in Detroit, Jason Foley's lower strikeout rate raises concerns about his job security. The fantasy landscape is shifting rapidly, and savvy managers will track these developments closely to optimize their rosters ahead of the draft.

On Christmas Eve, the Boston Red Sox completed a trade with the Minnesota Twins, acquiring left-handed relief pitcher Jovani Morán in exchange for catcher/first baseman Mickey Gasper. This transaction comes as the Red Sox prepare to finalize the signing of starting pitcher Walker Buehler.

Morán, who underwent Tommy John surgery, had a mixed performance in his previous MLB season but remains a valued addition to Boston's bullpen, which has already seen the arrival of other left-handed relievers this offseason.

The Boston Red Sox have signed free agent pitcher Patrick Sandoval to a two-year contract worth $18.25 million, despite him recovering from elbow surgery.

Sandoval, 28, is expected to miss the first half of the 2025 season after undergoing an internal brace procedure for a torn UCL. He was previously non-tendered by the Los Angeles Angels, making him a free agent.

In 2024, Sandoval had a disappointing record of 2-8 with a 5.08 ERA before his injury, while his best season was in 2022 with a 6-9 record and a 2.91 ERA.

The Boston Red Sox are exploring options for their pitching rotation, including free agent John Means, who is recovering from Tommy John surgery.

Means, a former All-Star with a solid track record, may not be available until late in the 2025 season. Despite his injury history, the Red Sox's interest signals their intent to bolster their rotation further after acquiring Garrett Crochet from the Chicago White Sox.

Aroldis Chapman has officially signed a one-year contract worth $10.75 million with the Boston Red Sox, pending a physical. This move comes as the Red Sox seek to bolster their bullpen after losing key relievers Kenley Jansen and Chris Martin.

Chapman, a seasoned left-handed reliever, had a solid 2024 season with the Pittsburgh Pirates, where he recorded 14 saves. His experience and past success, including a World Series title with the Chicago Cubs, could make him a valuable asset for Boston's pitching staff.