The Boston Red Sox made a flurry of moves at the MLB trade deadline, dealing away numerous young players and high-end prospects.
The Red Sox underwent a bit of a rough patch after the deadline, but recovered and have maintained their standing as the No. 2 team in the American League Wild Card. Some of Boston's trade deadline additions performed well immediately and others having a rough start to their Red Sox tenures. How are the players they traded away faring?
Checking in on the players the Red Sox traded away at the deadline
Connelly Early
The first player moved by Craig Breslow before the deadline was the young left-hander Connelly Early. Early was injured at the time of the trade and has still yet to make much progress now with the Washington Nationals. His timetable to return is unclear.
Marcelo Mayer
The Red Sox traded their former No. 4 overall pick to the San Francisco Giants in the deal that brought Erik Miller and Carlos Gutierrez to Boston. Marcelo was also injured when Boston traded him, and just like Early, he has yet to make his debut with his new organization. He started a rehab assignment on August 13, and according to the Giants' injury updates, Mayer is likely to debut during the Giants' first home series following their matchup with the Red Sox.
Tyler Uberstine
The most underrated move the Sox made at the deadline was flipping Uberstine for outfielder Eli White. The Atlanta Braves immediately optioned the righty to Triple-A Gwinnett. He's made four appearances there, pitching five innings without allowing a run.
Carlos Narváez
Narváez was the catcher sent back to the Baltimore Orioles in exchange for Adley Rustchman and Jake Rogers. He was having a very rough season in Boston, and it hasn't gotten much better in Baltimore. Through 13 games for the Orioles, the righty is hitting .079 (3 singles in 38 at-bats), with 12 strikeouts to two walks. Defensively, he's been excellent behind the plate, though, with three Blocks Above Average after posting four in Boston this season.
Anthony Eyanson
The 2025 third-round pick was the biggest prospect traded by Breslow at the deadline. Eyanson is MLB Pipeline's No. 49 prospect and is slotted in as Baltimore's No. 2 prospect per MLB Pipeline. He's made two starts in Double-A for the Chesapeake Baysox, posting a 2.60 ERA in 17.1 innings with 24 Ks.
Kyson Witherspoon
The 22-year-old became the 5th Red Sox first-round pick traded by the Red Sox in the last six (with Nick Yorke, Mayer, Kyle Teel, and Braeden Montgomery) by Breslow. He had been struggling in High-A Greenville this season, but in a small sample in the Orioles organization, it's been much better. In two starts for High-A Frederick, he has a 1.93 ERA in 9.1 innings, with 12 strikeouts but seven walks. He's ranked No. 12 on MLB Pipeline's Orioles top 30 prospects list.
Enddy Azocar
The 19-year-old outfielder was the most underrated prospect traded away by the Sox. He was a top-five prospect in the Red Sox org at the time of the trade and falls at No. 9 in a stronger Orioles system. He has been red-hot in High-A since the trade, hitting .364 with a 1.091 OPS. He has eight extra-base hits in 13 games with 16 RBI. He could turn into the player the Red Sox miss most from this trade.
Harold Rivas
Rivas was the player to be named later in the Rutschman trade. The 18-year-old outfielder was an international signee by the Sox in the 2025 cycle, receiving the second-highest bonus. He had been playing in the Florida Complex League while in the Red Sox organization, whose season ended in July. Unless Baltimore moves him up to Single-A, he won't make his organizational debut until next season. MLB Pipeline put him at No. 25 on the Orioles' top 30.
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