Just as important as the additions of starting center Jeremy Zuttah and right tackle Rick Wagner to the Ravens' offensive line success in 2014 was the ability of rookie reserves like James Hurst and John Urschel to seamlessly step in and play.
Injuries, though, prevented the Ravens' top backups from playing valuable snaps Saturday night. With the regular season creeping closer, offensive line depth is being put under the type of strain that could cripple it were it not for the extra players afforded by a 90-man training camp roster.
Six offensive linemen didn't suit up for Saturday's 40-17, preseason loss to the Philadelphia Eagles at Lincoln Financial Field, and three more were injured by the end of the game.