According to a source, the Oakland Raiders have expressed interest in free agent cornerback Mike Jenkins. Jenkins, a 2008 Cowboys first-round pick, has been to one Pro Bowl, and was a main starter during his time in Dallas. Last year when the Cowboys signed Brandon Carr to a five-year $50.1 million deal and selected Morris Claiborne in the first round, it made Jenkins expendable. Jenkins played last season as a backup and had three pass breakups. At the NFL owners meetings in Phoenix, Cowboys owner/general manager Jerry Jones offered praise for Jenkins.