The Diamondbacks traded center fielder Alek Thomas to the Dodgers on May 12, 2026, sending the 26-year-old to Los Angeles for minor league outfielder Jose Requena. The Dodgers will take on the roughly $1.4 million left on Thomas’ $1.9625 million arbitration salary.

Los Angeles is expected to option Thomas to Triple-A Oklahoma City after adding him to a roster that needed another center field option behind Andy Pages. The move came one day after the Dodgers designated Michael Siani for assignment to open a spot on the 40-man roster.

Thomas was once one of Arizona’s most promising young players, a second-round pick who debuted in 2022 and drew praise for his defense in center field. He has not produced nearly as much at the plate, posting a career.230/.273/.361 line in just shy of 1,500 plate appearances. A left hamstring strain early in 2024 slowed him further.

The trade also reflects where both clubs are in the roster cycle. Arizona had designated Thomas for assignment last week when it called up top outfield prospect Ryan Waldschmidt, and the organization had considered moving Thomas and Jake McCarthy for a few seasons before McCarthy was dealt to Colorado over the offseason. For the Dodgers, the appeal is simple: they can keep Thomas through arbitration for at least two more seasons if he sticks, and he still needs 20 more days on a major league roster in 2026 to top four years of service time.

That service-time detail matters because if Thomas spends at least 20 days in the minors, he will be out of options next year. The Dodgers are betting that his glove can carry enough value to justify the roster maneuvering, even after Siani’s brief and unproductive run in Oklahoma City, where he hit.225/.355/.303 without a home run and struck out 30 times in 107 plate appearances. For Thomas, the next stop is likely Oklahoma City, and the next question is whether Los Angeles gives his defense enough runway to find out whether the bat can follow.