Red Sox trade Marcelo Mayer to Giants for Erik Miller
2 sources • 1 min read • Latest: Aug 4, 2026, 12:27 AM
Last updated Aug 4, 2026
The Boston Red Sox are trading infielder Marcelo Mayer to the San Francisco Giants in exchange for left-handed reliever Erik Miller. Mayer, a former top prospect, has struggled with injuries and performance, hitting.223 with 85 strikeouts in 114 games. Miller has a 2.72 ERA and will be under team control through the 2029 season. The teams are finalizing the deal, pending medical reviews. The Red Sox have also made other moves this trade deadline, acquiring catcher Adley Rutschman and outfielder Eli White.
- •Marcelo Mayer is traded to the San Francisco Giants.
- •Erik Miller joins the Red Sox as a bullpen arm.
- •Mayer has struggled with injuries and performance this season.
- •Miller has a solid 2.72 ERA this season.
- •Trade is pending medical reviews before finalization.
- 12:27 AMYahoo Sports — BREAKING: Red Sox Trading Marcelo Mayer for 100MPH Lefty from Giants
- 9:40 PMYahoo Sports — Red Sox trading former top prospect Marcelo Mayer to San Francisco in deal for lefty reliever
"The Boston Red Sox are reportedly sending former top prospect Marcelo Mayer to the San Francisco Giants for lefty reliever Erik Miller, per Ken Rosenthal. Giants close to acquiring Marcelo Mayer from Red Sox for reliever Erik Miller, sources tell me and Andrew Baggarly. — Ken Rosenthal (@Ken_Rosenthal) August 3, 2026 Ken Rosenthal writes […] The post BREAKING: Red Sox Trading Marcelo Mayer for 100MPH Lefty from Giants appeared first on HEAVY.
"The Boston Red Sox are trading a once-vaunted prospect to the San Francisco Giants for another bullpen arm.
Sources
External links- Yahoo SportsAug 4, 2026, 12:27 AMBREAKING: Red Sox Trading Marcelo Mayer for 100MPH Lefty from Giants
The Boston Red Sox are reportedly sending former top prospect Marcelo Mayer to the San Francisco Giants for lefty reliever Erik Miller, per Ken Rosenthal. Giants close to acquiring Marcelo Mayer from Red Sox for reliever Erik Miller, sources tell me and Andrew Baggarly. — Ken Rosenthal (@Ken_Rosenthal) August 3, 2026 Ken Rosenthal writes […] The post BREAKING: Red Sox Trading Marcelo Mayer for 100MPH Lefty from Giants appeared first on HEAVY.
- Yahoo SportsAug 3, 2026, 9:40 PMRed Sox trading former top prospect Marcelo Mayer to San Francisco in deal for lefty reliever
The Boston Red Sox are trading a once-vaunted prospect to the San Francisco Giants for another bullpen arm.
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