The San Francisco 49ers Friday injury update has been released by the team, and a handful of players' statuses are in doubt heading into the weekend.

Wide receiver Ted Ginn Jr. (ankle), wide receiver Kyle Williams (concussion), cornerback Chris Culliver (shoulder), running back Bruce Miller (knee), cornerback Carlos Rogers (knee) and linebacker Patrick Willis (hamstring) are listed as questionable for Sunday's game against the St. Louis Rams. Neither Ginn nor Williams were able to practice at all this week. Culliver, Miller, Rogers and Willis have been limited in practice all week.

Tight end Delanie Walker (jaw) has been ruled out for Sunday's game.

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