The NFL’s Week 1 schedule already looks unusual. The league is opening on a Wednesday for just the second time in 107 years, with the first game set for 8:20 p.m. ET on Sept. 9. But the bigger story for the teams actually taking the field is less about the calendar than the injury reports that will shape how those matchups unfold.

Buffalo gets the first real test of the season against Houston, and the Bills know exactly what they are walking into. The Texans beat them in 2025 with eight sacks, a game in which Houston’s pass rush repeatedly disrupted Buffalo’s offense. That same defense carried Houston to one of the NFL’s best marks last season and into the AFC Divisional Round.

The Bills are now opening on the road against a team that has not lost to them at home since 2006.

That backdrop makes the injury report especially important. If Buffalo is trying to avoid another night spent under pressure, the availability of key players on both sides will matter from the first snap. Houston’s defensive front already showed what it can do against the Bills, and Buffalo’s Week 1 preparation has to account for that history before the season even gets going.

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The schedule itself adds another layer of oddity. The NFL has only opened a season with a Wednesday game once before, in 2012, and this year’s opener comes with a Thursday-night game in Australia following it. The league also will not have a Friday game in Week 1, after scheduling one in each of the last two seasons. Under league rules, it cannot televise games on Friday or Saturday from the second weekend in September through the second weekend in December, and the first Friday on the calendar this year falls on Sept. 11.

For the Packers and Vikings, the injury picture is just as crowded.

Green Bay’s veteran trio of Christian Watson, Tucker Kraft and Jayden Reed did not play a single snap together last season because of injuries, a reminder of how quickly a receiving group can be altered before the season even settles in. The Packers also listed Aaron Banks, Jordan Morgan, Javon Hargrave, Barryn Sorrell, Jacob Thomas and Devonte Wyatt as limited in participation because of injuries, leaving several spots on the report before their Week 1 trip to Minnesota.

That matters because Jordan Love’s command at the line of scrimmage has been a point of emphasis for Green Bay. Head coach Matt LaFleur has praised Love’s ability to make checks and adjustments, especially when protection calls are involved. Against a Vikings defense that can bring pressure in different ways, the Packers’ ability to sort out those looks could be tested early.

Minnesota has its own injury concerns. Three players — all rookies — appeared on the Vikings’ initial injury report, and Thomas and tackle Caleb Tiernan are recovering from ankle injuries suffered in preseason games. The Vikings returned to practice Wednesday in advance of hosting Green Bay at 3:25 p.m. Sunday, but the report still gives an early look at the depth issues they may have to manage in Week 1.

That is the common thread across the opening weekend: the teams are not just trying to start fast, they are trying to start healthy. Buffalo has to deal with a Houston defense that already proved it can wreck a game. Green Bay and Minnesota are both sorting through injury lists before they even get to kickoff. In a week that begins on a Wednesday and stretches into an unusual schedule around it, the availability report may end up being as revealing as the matchups themselves.