Christian McCaffrey is deadly serious about his 9-to-5 job — head coach Kyle Shanahan calls him “a psycho in the best way possible” — but he loosens up with reporters when the topic isn’t tied to his NFL career.

Christian McCaffrey has been inefficient in his three games played since dealing with Achilles tendinitis. He doesn't look anywhere close to the player that he

In a season where running backs are thriving in the NFL, the 49ers hope to get Christian McCaffrey back on track.