The San Francisco Giants acquired infielder Marcelo Mayer from the Boston Red Sox just before the 2026 MLB trade deadline on Monday, according to Joel Sherman of the New York Post.

President of baseball operations Buster Posey said the Giants were deep in trade talks on All-Star second baseman Luis Arraez on Sunday night, but he wasn’t sure if any other deals would end up coming to fruition ahead of Monday’s 3 p.

Two and a half years after the Giants acquired him in one of the better trades in recent franchise history, Robbie Ray is on the move again. This time, the deal sends the 34-year-old left-hander from San Francisco to San Diego in the fifth time he has been traded in his 13 years in the big leagues.

Phillies bolster lineup with three-time batting. champion Luis Arraez.

The Giants kicked off Monday’s Trade Deadline by cashing in their biggest trade chip, finalizing a trade that sends All-Star second baseman Luis Arraez to the Phillies along with right-handed reliever Caleb Kilian.

Logan Webb's recent success gives San Francisco a clear edge against a struggling Rangers offense. The Texas Rangers head into tonight's series opener against the San Francisco Giants as a -117 home favorite at Globe Life Field, with first pitch scheduled ...

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