The Minnesota Vikings named cornerback Brian Williams as their transition player on Thursday, which prevents him from becoming an unrestricted free agent. By league rules, the Vikings must tender Williams a one-year qualifying offer at the average of the 10 highest-paid players at his position or 120 percent of his 2005 salary -- whichever is greater. Williams will still be allowed to sign an offer sheet with another team, which Minnesota would have a week to match.