"Why in the world did Frank Gore have just 10 carries in Sunday's 21-19 loss to the Cardinals?

Today, 49ers coach Jim Harbaugh grudgingly supplied a logical and not-so-shocking answer: San Francisco's star running back isn't healthy.

"He's got some things," Harbaugh said after he initially declined to explain the reason for Gore's sparse workload. "He's not 100 percent."

Gore is presumably dealing with knee and ankle injuries that he suffered in back-to-back games last month."