The Bills allowed the fewest sacks and ranked fourth in rushing yards per carry last season, but the offensive line worries the team this summer.

Four of the five starters have returned and the one addition, second-round pick Cordy Glenn, is supposed to be an upgrade at left tackle.

"I don't see that sense of urgency that we had last year, where we were just getting after people game after game, week after week," left guard Andy Levitre said.

"It's still the preseason, and this week is going to be a good test to see if we still have it in us. We have to fight throughout a whole game, and I don't think we've seen that through the first two games."