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3h ago

Giants Claim Justin Dean and Reiver Sanmartin, Designate Mason Black

The transactions mark early 40-man reshaping aimed at outfield defense with added left-handed relief depth.

TORONTO, ONTARIO - OCTOBER 31: (L-R) Enrique Hernández #8, Justin Dean #75, Andy Pages #44, and Miguel Rojas #72 of the Los Angeles Dodgers celebrate after defeating the Toronto Blue Jays 3-1 in game six of the 2025 World Series at Rogers Center on October 31, 2025 in Toronto, Ontario. (Photo by Emilee Chinn/Getty Images)
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Dodgers Andy Pages (44), Enrique Hernandez (8), and Justin Dean (75) celebrate a 3-1 win over the Brewers in game 3 in the NLCS at Dodger Stadium on Thursday, Oct. 16, 2025. (Photo by David Crane, Los Angeles Daily News/SCNG)

Overview

  • San Francisco placed outfielder Justin Dean and left-hander Reiver Sanmartin on its 40-man roster after claiming both on waivers Thursday.
  • To create space, the Giants designated right-hander Mason Black for assignment following a difficult 2025 across Triple-A and limited MLB action.
  • The Dodgers had outrighted Dean earlier in the day to clear a roster spot, later filled by outfielder Ryan Ward on Los Angeles’ 40-man.
  • Dean served the Dodgers as a late-inning defender and pinch runner, logged 18 regular-season games and 13 postseason appearances, and posted a .289/.378/.431 line with 27 steals at Triple-A Oklahoma City.
  • Sanmartin returned from Tommy John surgery to record a 2.67 ERA with 55 strikeouts over 67.1 innings at Triple-A Louisville, offering the Giants a cost-controlled lefty relief option as offseason roster moves begin leaguewide.