The Oakland Athletics have signed Santiago Casilla to a two-year contract.
Casilla returns to the Athletics after spending seven seasons with the San Francisco Giants.
The A's could use Casilla as a late-inning options, including a possible role in the ninth inning.
"To be able to sign an experienced late-inning reliever who has performed in multiple World Series games makes our bullpen deeper and obviously better," Bob Melvin said. "Great sign for us."