On the other side of the ball, the offensive line has battled the injury bug. Consequently, this unit, which has been a huge key to the 49ers' success in recent years, has struggled. San Francisco lost center Daniel Kilgore to a broken leg on Sunday -- that's the bad news. The good news? The rest of the O-line should be healthy after a Week 8 bye. Now the group just needs to show more consistency. Alex Boone, for one, has not played as well this year as he has in the past.