The Niners bring McCaffrey back to the Bay Area. A look at what they gave up for him. How McCaffrey is a great fit for the Niners. The ties McCaffrey has with Coach Kyle Shanahan. Concerns surrounding McCaffrey Will we see McCaffrey in Week 7 against the Kansas City Chiefs? Who will be playing cornerback this week for the Niners? And how the Niners can't afford to make mistakes against the Chiefs. 
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