The Ravens’ final injury report of the regular season listed 16 players. That’s 10 more injured players than the Ravens listed entering the 2011 season finale. That’s just one way to measure the ways the Ravens have had to deal with a laundry list of health woes this season. The Ravens’ injury issues have been extensive on defense. OLB Terrell Suggs (biceps), DT Haloti Ngata (knee) and SS Bernard Pollard (ribs) are among the defenders who have dealt with nagging injuries. Time and again, the Ravens have had to draw on their defensive depth, with ILB Dannell Ellerbe and CB Corey Graham two players who have distinguished themselves when getting extended playing time, the way we hear it. Nevertheless, it’s been a struggle for the Ravens’ defense in 2012. While the Ravens are likely to have stalwart MLB Ray Lewis (triceps) back for the playoffs, they will not be close to fully healthy on defense as they begin to play the games that will define their season.