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Why Red Sox Traded Lefty Reliever Eduardo Rivera to Cardinals
Boston cleared a 40-man roster spot by moving the 23-year-old lefty, who posted a 6.30 ERA in four MLB appearances, to St. Louis.
- On Monday, the Boston Red Sox designated right-handed reliever Zack Kelly and left-handed pitcher Eduardo Rivera for assignment to clear 40-man roster space. By Tuesday, the St. Louis Cardinals acquired Rivera from Boston in exchange for minor league pitcher Juan Garcia.
- To accommodate five players returning from the 60-day injured list, Boston activated Kutter Crawford, Johan Oviedo, Justin Slaten, Triston Casas, and Eli White. The Red Sox faced a strict deadline following the World Series to finalize the 40-man roster.
- Kelly, a 31-year-old reliever, logged a 4.04 ERA over 115 appearances since his 2022 debut, while 23-year-old Rivera posted a 6.30 ERA in his limited 2026 MLB action. Both battled significant injuries including elbow inflammation and lumbar strains during their Red Sox tenures.
- While the Cardinals promptly acquired Rivera, Kelly remains designated for assignment, giving the Red Sox seven days to trade, release, or waive the right-hander. Other clubs are expected to express interest in the veteran reliever, who is arbitration-eligible for the first time next year.
- The Red Sox must clear additional roster spots before the November 17 deadline to protect prospects from the Rule 5 Draft. Arbitration-eligible player decisions are scheduled for November 20 as Boston continues reshaping its roster for the 2027 season.
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Red Sox trade LHP Eduardo Rivera to Cardinals
By Field Level Media Nov 03 (Field Level Media) - The Boston Red Sox traded left-hander Eduardo Rivera to the St. Louis Cardinals on Tuesday in exchange for minor league right-hander Juan Garcia. Boston designated Rivera, 23, for assignment on Mo...
The Boston Red Sox appointed Puerto Rican left-handed Eduardo Rivera for assignment, a decision that opens up the possibility of a change of organization months after his major league debut.
·San Juan, United States
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Coverage Details
Total News Sources14
Leaning Left1Leaning Right3Center5Last UpdatedBias Distribution56% Center
Bias Distribution
- 56% of the sources are Center
56% Center
11%
C 56%
R 33%
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