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Add OT Luke Joeckel from Texas A&M to the list. He came yesterday on Saturday, 3/9. Widely considered the best prospect in the 2013 NFL Draft, Joeckel could easily be a Chief or a Jaguar before the Raiders pick at No. 3, however, should both of those teams go a different route the Raiders will do their due diligence. Link
These are just getting started but as of right now C Eric Kush from California (PA), will meet with Oakland. Kush is also scheduled with Tennessee.