Doctor Offers Insight into 49ers HC Kyle Shanahan's Severe Concussion

Kyle Shanahan will return to his job as head coach of the 49ers when his concussion symptoms go away. And no one knows when they'll leave for good. Eleven days ago, Kyle Shanahan suffered a "severe concussion," as well as a broken nose, a broken hand, three broken ribs and a laceration on his face that required 40 stitches.

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