Free agent safety Michael Huff has agreed to terms with the Oakland Raiders, a source tells ESPN NFL Insider Adam Schefter. A little-known rule prevented the Raiders from re-signing the 28-year-old Huff last season, as much as they would have liked to, an NFL source told Schefter. Any player whose salary escalated at a higher rate than 30 percent from 2009 to 2010, as Huff's and other players' did, was precluded from signing a contract extension with his team, according to an NFL source. Read more: http://espn.go.com/nfl/story/_/id/6820655/michael-huff-oakland-raiders-agree-contract