The Ravens will be without starting cornerback Chris McAllister for the next three to four weeks with a strained right knee.  McAllister has not played up to his ability as he’s been repeatedly torched so far this season.  He only has 14 tackles and 1 interception so far this season.  Corey Ivey will start in McAllister’s spot.  He is having a good season as he has made 16 tackles, has 2 sacks, recovered a fumble and picked off a pass.