ORCHARD PARK, N.Y. (AP) Defensive tackle Kyle Williams and linebacker Nigel Bradham missed their second day of practice because of knee injuries, leaving the two Buffalo Bills starters' status uncertain to play at Detroit on Sunday.
Coach Doug Marrone declined to provide any update on the players' status by saying he first needed to consult with team doctors.
Williams, a three-time Pro Bowl selection, hurt his right knee and Bradham his left in a 23-17 loss at Houston last weekend. Williams watched the start of practice from the sideline on Thursday.
It's also uncertain whether starting left guard Chris Williams can play because of a back injury that forced him to miss last week's game.
Buffalo (2-2) has lost two straight in preparing to play the Lions (3-1).
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