Red Sox get '25 ROY finalist Durbin from Crew in 6-player trade

FORT MYERS, Fla. -- The remaking of the Red Sox’s infield continued on Monday, the eve of the club’s official opening of Spring Training, as chief baseball officer Craig Breslow acquired 2025 NL Rookie of the Year finalist Caleb Durbin as part of a six-player swap in which Boston also acquired a Competitive Balance Round B selection in the 2026 Draft.

TRADE DETAILS
Red Sox receive: INF Caleb Durbin, INF Andruw Monasterio, INF Anthony Seigler, Competitive Balance Round B Draft pick
Brewers receive: LHP Kyle Harrison, INF David Hamilton, LHP prospect Shane Drohan

In addition to Durbin, Boston received infielders Andruw Monasterio and Anthony Seigler and a Competitive Balance Round B Draft pick. The 25-year-old Durbin slashed .256/.334/.387 while splitting time at third base (primary), second base and shortstop.

The buzzword for Boston’s infield in 2026 will be versatility. While veteran shortstop Trevor Story and recently acquired veteran first baseman Willson Contreras will hold down regular spots in the lineup and in the field, the same can’t be said for second and third base, which should see a lot of moving parts.

Durbin will play a key role in the puzzle, along with Marcelo Mayer, Isiah Kiner-Falefa (one-year deal pending a physical) and Romy Gonzalez.

Those players all play a variety of positions across the infield, and manager Alex Cora will ultimately decide how best to deploy his personnel.

In Durbin, the Red Sox get a player who is slight in frame (5-foot-7), but made a sizeable impact on the NL Central champion Brewers last season, combining good strike zone awareness and a solid bat. Durbin displayed speed (18 steals) and some pop (11 homers, 25 doubles) in 445 at-bats, producing a bWAR of 2.8.

The most notable piece going to Milwaukee in the deal is Harrison, a former top lefty starting pitching prospect who was considered perhaps the most important acquisition piece in the stunning deal last June that sent star slugger Rafael Devers to the Giants.

However, the Red Sox are suddenly deep in young, controllable starting pitching, and there didn’t seem a path for him to make the Opening Day roster. The southpaw has a 4.39 ERA across 42 outings (37 starts) since debuting in the Majors in 2023.

Monasterio adds another depth piece to Boston’s infield. The 28-year-old played in 68 games for the Brewers during 2025, batting .270 (34-for-126) with nine doubles, four home runs and 16 RBIs.

The right-handed hitter made 21 starts at shortstop, eight at second base and five at third base, while also playing 20 1/3 innings at first base and two innings in left field. He also played in 30 games for Triple-A Nashville, batting .250 (28-for-112) with a .346 on-base percentage, six doubles and four home runs. Originally signed as an international free agent by the Chicago Cubs in March 2014, the Venezuela native has batted .250 (133-for-533) in 219 career Major League games, all with Milwaukee (2023-25).

Hamilton, known for his blazing speed, goes back to the organization that originally shipped him to Boston in December 2021.

The 26-year-old Siegler represents an organizational depth piece, having played in 34 games for the Brewers in ‘25, his first Major League season. The lefty hitter and ambidextrous thrower made 16 starts at third base and one as the designated hitter. Siegler can catch and play the infield right-handed while throwing lefty from the outfield.

The Arizona native was originally selected by the New York Yankees in the first round (23rd overall) of the 2018 MLB Draft.