BOSTON – (Staff and Wire Service Report from Official News Release) – The Boston Red Sox are acquiring third baseman Caleb Durbin and two other infielders from the Milwaukee Brewers in exchange for three players, multiple media outlets reported Monday.
The reported trade sends left-handers Kyle Harrison and Shane Drohan and infielder David Hamilton to Milwaukee. Boston will also acquire Andruw Monasterio, Anthony Seigler and a Competitive Balance Round B Draft pick.
Durbin, who turns 26 on Feb. 22, fills a lineup void created when Alex Bregman signed with the Chicago Cubs in free agency.
Durbin made his major league debut last April and batted .256 with 11 home runs, 53 RBIs and 18 stolen bases in 136 games for the Brewers. He led the National League with 24 hit-by-pitches and finished third in the NL Rookie of the Year voting.
Durbin, 25, make his Major League debut on April 18. The right-handed hitter played in 136 games, batting .256 (114-for-445) with 25 doubles, 11 home runs, 60 runs scored, 53 RBI, and 18 stolen bases while making 119 starts at third base and three at second base. He led National League rookies in stolen bases and ranked second in runs scored and third in hits and doubles. In nine Postseason games, Durbin batted .276 (8-for-29) with two doubles, one triple, three runs scored, two RBI, and three stolen bases. An Illinois native, he was originally selected by the Atlanta Braves in the 14th round of the 2021 First-Year Player Draft.
Monasterio, 28, played in 68 games for the Brewers during 2025, batting .270 (34-for-126) with nine doubles, four home runs, and 16 RBI. The right-handed hitter made 21 starts at shortstop, eight at second base, and five at third base, while also playing 20.1 innings at first base and 2.0 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).
Seigler, 26, played in 34 games for Milwaukee during 2025, his Major League debut, batting .194 (12-for-62) with six runs scored and five RBI. A switch-hitter and ambidextrous thrower, he made 16 starts at third base and one as the designated hitter. He also played in 72 games for Triple-A Nashville, batting .285 (71-for-249) with a .414 on-base percentage, .892 OPS, 51 runs scored, 16 doubles, four triples, eight home runs, and 23 stolen bases. The Arizona native was originally selected by the New York Yankees in the first round (23rd overall) of the 2018 First-Year Player Draft.
Harrison, 24, posted a 4.04 ERA (16 ER/35.2 IP) with 38 strikeouts in 11 games (six starts) during 2025 with the San Francisco Giants (eight games, four starts) and Boston (three games, two starts). The left-hander also made 18 Triple-A starts between Worcester (12 starts) and Sacramento (six starts), going 5-2 with a 3.66 ERA (31 ER/76.1 IP) and 88 strikeouts. He was acquired by the Red Sox in a trade from San Francisco alongside three others in exchange for Rafael Devers on June 15. Originally selected by the Giants in the third round of the 2020 First-Year Player Draft, the California native has posted a 4.39 ERA (95 ER/194.2 IP) with 191 strikeouts in 42 career Major League games (37 starts) with the Giants (2023-25) and Red Sox (2025).
Drohan, 27, went 5-2 in 2025 with a 3.00 ERA (18 ER/54.0 IP), 77 strikeouts, and a .202 opponent batting average in 15 games (14 starts) between High-A Greenville (three starts) and Triple-A Worcester (12 games, 11 starts). The left-hander is rated as the Sox’ No. 15 prospect by Baseball America. Selected by Boston in the fifth round of the 2020 First-Year Player Draft, the Florida native owns a 4.29 ERA (196 ER/411.2 IP) in 104 career minor league games (89 starts).
Hamilton, 28, batted .198 (35-for-177) with six home runs and 22 stolen bases in 91 games for the Red Sox in 2025. The left-handed hitter made 42 starts at second base and seven at shortstop. Originally selected by the Milwaukee Brewers in the eighth round of the 2019 First-Year Player Draft, the Texas native has hit .222 (112-for-504) with 23 doubles, two triples, 14 home runs, 47 RBI, and 57 stolen bases in 204 career Major League games, all with the Red Sox (2023-25).