Devon Witherspoon, Seahawks agree to four-year extension NBC SportsSources: Seahawks, CB Witherspoon agree to 4-year, $132M deal ESPNReport: Seahawks CB Devon Witherspoon agrees to four-year, $132M extension NFL.comSeahawks to make Devon Witherspoon highest-paid CB in NFL with extension seattletimes.comDevon Witherspoon contract: Seahawks star becomes NFL's highest-paid CB, raises bar for Christian Gonzalez CBS Sports