The Raiders have filed a grievance against JaMarcus Russell according to Jason Cole of Yahoo! Sports, who cited two unnamed sources. The Raiders apparently seek to recover $9.55 million of advances on salary the team gave Russell for the 2010, 2011 and 2012 seasons. Apparently Russell’s contract was changed at some point in the last three years as a basis for the grievance. The NFL Players Association will represent Russell in the grievance.