The Raiders signed third-round draft pick Gabe Jackson to a four-year contract on Thursday afternoon. The offensive guard selected No. 81 overall from Mississippi State was the last member of the 2014 draft to autograph the dotted line. He did so well ahead of training camp thanks to a rookie wage scale with contract value precisely slotted into the draft order. By that rationale, predicts that Jackson will make $2.952 million over the life of his four-year deal, with a $591,376 signing bonus.