While they will very likely have their starting center back Sunday at Denver, the Oakland Raiders will have to revert back to their makeshift secondary.
The Raiders ruled out safety Nate Allen for Sunday’s game against the Broncos with a knee injury. Allen injured his right knee in Oakland's loss to Kansas City last week and hasn’t practiced since. It is the same knee that Allen, who signed a four-year, $23 million deal as a free agent from Philadelphia last spring, injured in Week 1. He was out for two months. On Monday, Oakland coach Jack Del Rio said that Allen was day-to-day.