The Raiders will be without 23-year old WR Chaz Schilens for the next 4-6 weeks after he underwent surgery to repair a broken bone in his foot.  He played in all 16 games for the Raiders last season and he caught 15 passes for 226 yards (15.1 avg) with 2 TD grabs.  Schilens was starting to develop some chemistry with QB JaMarcus Russell so the Raiders’ passing attack could be hurt some while Schilens is out of action.