Raiders center Stefen Wisniewski missed his fifth consecutive practice on Thursday with a knee sprain further decreasing his chance of playing Sunday against the Kansas City Chiefs. It’s a big blow but the Raiders survived against the Chargers. Andre Gurode filled in admirably for Wisniewski who was hurt himself the week before against Washington. Gurode a five-time Pro Bowl center in his career’s twilight still has a few tricks up his sleeve. He transitioned well despite played left guard in previous games and should get more comfortable as reps go by. “You go from left guard to center and there’s a little bit more responsibility going over to center” Raiders coach Dennis Allen said. “But he’s played that position at a high level for a long time in this league and he really did a good job in the game and I think the more he plays in there the better he’s going to be. So I would look for even more improvement out of him this week; he’s got a tough challenge but I would look for more improvement out of him this week.” Wisniewski was the glue that kept a battered offensive line together. He kept the front productive despite injuries at each post along each flank. Now a slow-healing unit must carry on temporarily at least without their leader. The line has experience at nearly every spot which has helped keep pass protection functional.