Affeldt (shoulder) threw another bullpen session Friday, CSN Bay Area reports. Three days after throwing his first bullpen session since landing on the DL, Affeldt got right back at it. He is slated to throw another bullpen session Sunday, and if his shoulder responds well, the lefty could head out for a brief rehab assignment next week -- perhaps just one appearance -- before returning to the active roster. Affeldt his managed to rack up seven holds without blowing a save this season despite a 5.96 ERA and 1.81 WHIP.