Most understand hump-day as a purely Wednesday phenomenon. For the San Francisco 49ers it came early this week. It was Monday during the front end of two-a-days that Head Coach Mike Singletary said: “When I look at practice today (been anticipating this day), we hit a wall. It is hump-day. You have to work your way through that wall. We did not do a very good job of handling today. Our guys tried. I guess looking back on it, it is one of those things that is more of a blessing than a curse, because we see it. We see what we have to do. When I talk about mental toughness, that’s the thing that (on days like today) the great teams work their way through. Our guys are trying, but we are not there yet.”

These words came shortly after practice was cut short partly due to a flurry of injuries. Most notable injury is veteran center Eric Heitmann. Heitmann, starting his ninth season at center for the 49ers has looked to have a foot or ankle problem. He was eventually removed from the field on a cart. Earlier, Coach Singletary had to move the practice line of scrimmage well past line-backer Martail Burnett, when his knee failed him and he was in the way writhing in pain. He was also removed on a cart.

Ironically, my greatest question going into 49ers camp was the effectiveness of their offensive line. Few believe that Alex Smith is a stud quarterback and therefore it becomes imperative that the o-line be especially strong to allow Smith to be what he seems to be: an effective game manager. Though no QB wants to wear the label “game manager,” consensus among the press is that this label fits and may, in fact, be kind.

If this 9ers team is to win a soft division and make the playoffs for the first time in seven seasons, it is incumbent on whatever o-line is on the field to do an amazing job. The shuffling of personnel in light of the injury to Heitmann coupled with dependence on rookies, Mike Iupati and Anthony Davis, means the o-line depth will tested immediately.