As expected, the 49ers elevated receiver Dominique Zeigler to the active roster today. To make room, they waived tackle Kirk Barton, who was picked up on Oct. 16 after being waived by the Dolphins. Zeigler, the most acrobatic of the 49ers' receivers, is expected to add depth to a receiving corps that will be without Arnaz Battle (foot). Jason Hill will take over for Battle at slot receiver; Zeigler will back up Hill.
-- Matt Barrows