According to Jim Harbaugh, Frank Gore is playing at less than 100 percent.
Source: CSN Bay Area
Fantasy Spin: Gore had been dealing with an ankle injury earlier, so this could be the main reason why he only received 10 carries against the Cardinals. Plus the 49ers have clinched the NFC West, so keeping Gore fresh for the playoffs is a priority. It's not going to get any easier for Gore owners with a matchup against the Steelers coming up in Week 15. He will be an RB2 at best this week.