The Dodgers officially recalled Ferguson from Triple-A Oklahoma City on Thursday.
Ferguson arrived in Philadelphia as a member of the taxi squad ahead of Thursday's series finale with the Phi;lies, but the Dodgers didn't decide until shortly before first pitch to formally activate him. He'll assume the active roster spot of Casey Sadler, who was optioned to Triple-A in a corresponding move. Ferguson may only stick around with the Dodgers until the team's other relievers are sufficiently rested.