The Red Sox traded infielder Deven Marrero to the Arizona Diamondbacks for a player to be named or cash.
Sox president of baseball operations Dave Dombrowski made the announcement on Saturday.
Marrero, 27, was fighting for one of the final roster spots as a bench player, along with utility man Brock Holt. The first-round pick in 2012 out of Arizona State had spent his entire pro career with the Red Sox organization. He appeared in 109 major league games from 2015-17, making 50 starts at third base, nine at second base, and five at shortstop.
In 2017, the right-handed hitter played in a career-high 71 major league games, batting .211 with four home runs and 27 RBI.