Boston Red Sox
Durbin was a finalist for National League Rookie of the Year in 2025.
Milwaukee Brewers’ Caleb Durbin celebrates after a double against the Los Angeles Dodgers during the seventh inning in Game 3 of baseball’s National League Championship Series, Thursday, Oct. 16, 2025, in Los Angeles. AP Photo/Brynn Anderson
The Boston Red Sox reshaped their infield Monday, acquiring third baseman Caleb Durbin from the Milwaukee Brewers as part of a six-player trade, the team announced.
Boston also received infielder Andruw Monasterio, infielder/catcher Anthony Seigler, and a Competitive Balance Round B pick in the 2026 First-Year Player Draft, the Red Sox said in a press release. In return, Boston sent left-handed pitchers Kyle Harrison and Shane Drohan, as well as infielder David Hamilton, to Milwaukee.
At the center of the deal is Durbin, who emerged as one of the National League’s top rookies in 2025. The 25-year-old finished third in NL Rookie of the Year voting after making his Major League debut on April 18.
A right-handed hitter, Durbin appeared in 136 games, batting .256 with 25 doubles, 11 home runs, 60 runs scored, 53 RBIs, and 18 stolen bases. He was a fixture at third base, making 119 starts there, and led National League rookies in stolen bases while ranking near the top in runs scored.
Boston adds versatility with Monasterio, who spent much of 2025 moving around the Brewers’ infield. The 28-year-old batted .270 in 68 Major League games while seeing time at shortstop, second base, and third, along with brief appearances at first base and left field. The Venezuela native continued to provide offense at Triple-A Nashville, where he posted a .346 on-base percentage in 30 games.
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Seigler brings another layer of flexibility to the roster. The 26-year-old made his Major League debut with Milwaukee in 2025, appearing in 34 games and batting .194. A switch-hitter and ambidextrous thrower, Seigler turned in a strong season at Triple-A-Nashville, batting .285 with a .414 on-base percentage and 51 runs scored.
To complete the deal, Boston parted with three players.
Harrison, 24, split the 2025 season between San Francisco and Boston, posting a 4.04 ERA in 11 Major League appearances. He also made 18 starts at the Triple-A level, where he went 5-2 with a 3.66 ERA.
Drohan, 27, adds another left-hander to the Brewers’ system after going 5-2 with a 3.00 ERA across multiple minor league levels in 2025. He is ranked as Boston’s No. 15 prospect by Baseball America, according to the press release.
Hamilton, 28, appeared in 91 games for the Red Sox in 2025, contributing six home runs and 22 stolen bases while primarily playing second base.
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