Oklahoma cornerback could be 49ers' next 'redshirt'

Daily 49ers blog for NBC Bay Area website: Former Sooners cornerback Aaron Colvin, recovering from a torn ACL, could be a solid late-round pick for San Francisco if it wants to wait a season for him to be able to play. http://www.nbcbayarea.com/news/sports/Niners-Could-Draft-Another-Redshirt-Player-255325521.html