49ers running back Frank Gore, nursing a sprained right ankle, practiced Wednesday on a limited basis. The 49ers are confident he will be ready to face the Minnesota Vikings on Sunday but are easing up on his workload as a precaution. "I'm feeling pretty good," Gore said. He plans on being fully ready for his showdown against Vikings' running back Adrian Peterson, who leads the NFC with 272 rushing yards. Gore is second with 237 rushing yards. Source: Contra Costa Times