Week three of the NFL preseason is typically considered the most important week of the exhibition season as teams tend to play their starters for the majority of the first half, and in some cases, a series into the third quarter so they can make halftime adjustments to both the starting offense and defense.
This dress rehearsal is likely the final in-game action several starters will see as the final preseason game will be used to give rest to those who are locks to make the team while providing ample opportunities for who are on the roster bubble to make their final claims for making the 53-man roster.