The Giants placed Estrada on waivers Wednesday, Susan Slusser of the San Francisco Chronicle reports.
Estrada has taken a considerable step back at the plate this season, slashing .216/.246/.345 with nine home runs and 46 RBI through 374 plate appearances. Due to his poor performance, the Giants have now made him available for any other team willing to pay the remainder of the $4.7 million contract he signed with San Francisco during the offseason. He is still eligible to play while on waivers.