Just five days after winning the World Series with the Dodgers, centerfielder Justin Dean has been claimed by the Giants.
Dean appeared in 13 playoff games for Los Angeles, but had zero plate appearances as he was a defensive replacement and pinch runner. The 29-year-old was called up in August and served a similar role in 18 regular-season games, going 0-for-2 with a stolen base. He slashed .289/.378/.431 in 90 games at Triple-A Oklahoma City.
The former 17th-round draft pick of the Braves in 2018 signed with the Dodgers in free agency last year and has three minor-league options left.
To make room for Dean and pitcher Reiver Sanmartin, claimed off waivers from Cincinnati, the Giants designated right-hander Mason Black for assignment.
Black struggled this year across two levels: His only appearance for the Giants was a four-inning relief outing on July 4 in Sacramento against the A’s. He allowed three runs and a pair of homers in an 11-2 loss after relieving Justin Verlander. At Triple-A Sacramento, he had a 5.81 ERA over 30 appearances (24 starts) in 2025.
Since debuting for the Giants in 2024, Black, 25, has an ERA of 6.47 over 10 outings at the major-league level. He has one minor-league option left.
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Sanmartin appeared in just one game for the Reds this season, allowing a run and two hits over 1 2/3 innings. A 29-year-old Colombian, Sanmartin saw his most major-league action in 2022, when he pitched 57 innings — mostly in relief — with a 6.32 earned-run average.
He pitched 67 1/3 innings at Triple-A this season with a 2.67 ERA and has a minor-league option left.
The offseason officially begins five days after the end of the World Series, so Thursday was the first day of moves for MLB teams.





