The Giants have lost another coach from last year’s staff as first-base coach Mark Hallberg will join the Minnesota Twins as a bench coach under recently-hired manager Derek Shelton, the Twins announced on Friday.

President of baseball operations Buster Posey told reporters this week in Las Vegas during MLB’s GM Meetings that Hallberg, his roommate at Florida State, and catching coach Alex Burg were deciding whether to stay with the Giants or purse other options.

“He’s one of those that we’d love to have back, but he has been kind of a popular guy with some other teams, as well,” Posey told reporter on Tuesday. “We’re working through that.”

Hallberg, 39, spent six seasons on the Giants’ coaching staff under former managers Gabe Kapler and Bob Melvin, working as an assistant coach (2020-

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