ESPN reported the 49ers are interested in claiming outside linebacker Shawne Merriman if the Chargers release him as expected.
Niners coach Mike Singletary said he likes his four-man rotation of outsider backers just fine.
"I think they're doing a good job," Singletary said in Monday's news conference, one day after a 17-9 victory over the visiting Raiders.
"I think they're applying pressure, they're winning some of the one-on-one battles. I think they're doing a good job overall."