Titans Head Coach Jeff Fisher said Wednesday he doesn't know yet who will play where across Tennessee's injury riddled offensive line Sunday against the Raiders.

''We have a little better feel (about who will be able to play),'' Fisher said. ''We didn't do much today other than walk; we'll probably split practice up tomorrow, half practice and the rest walk-through.''

Fisher said center Justin Hartwig remains very sore after suffering a severe laceration of his finger Monday night that required surgery.

The possibility remains that Hartwig could move to guard this week to avoid potential pitfalls that may come from snapping the football with an injured finger.

Fisher said guard Benji Olson and tackle Fred Miller both continue to be sore. Miller has been battling ankle problems while Olson suffered a toe sprain against Kansas City.

Fisher hopes to have tackle Brad Hopkins back Sunday from a broken hand sustained against the Bears in week nine.

''If he (Hopkins) plays, he'll have to play in (some sort of protective equipment),'' Fisher said. ''He's still very uncomfortable.''