Ex-Auburn standout Chris Davis earns 49ers nickel role

Daily 49ers blog for NBC Bay Area website: Cornerback Chris Davis has gone from undrafted and cut by the Chargers to a role as the 49ers' top slot defender. http://www.nbcbayarea.com/news/local/Niners-Cornerback-Davis-Has-Made-Most-of-His-Opportunity-392446601.html