The Graham Mertz injury has quickly become one of the biggest stories surrounding the Houston Texans after their preseason opener against the Los Angeles Chargers.
Mertz, Houston’s third-string quarterback, left Thursday night’s game after suffering a knee injury during a scramble. The early news is concerning, with reports indicating that the Texans believe the 25-year-old quarterback suffered a torn ACL. Additional testing is expected to confirm the diagnosis.
For a player trying to establish himself in the NFL, this is a brutal setback.
1. Graham Mertz Suffers Knee Injury
Mertz’s injury happened in the second quarter of Houston’s preseason matchup against the Chargers.
According to reports, Mertz grabbed his knee after a nine-yard scramble and was unable to continue. He completed 4 of 7 passes for 23 yards before leaving the game.
The Texans ultimately lost the preseason opener 27-7, but the score became secondary once Mertz went down.
Mertz had entered the contest competing for a roster spot and valuable depth behind C.J. Stroud and Davis Mills. His injury now creates another question for Houston’s quarterback room.
2. Texans Fear a Torn ACL
This is the part that has Saints fans worried — and Texans fans even more concerned.
ESPN’s Adam Schefter reported that the Texans believe Mertz tore his ACL during the preseason game. However, further testing is expected before the injury is officially confirmed.
Reuters also reported that the injury is expected to be season-ending if the ACL tear is confirmed.
That would be a devastating outcome for Mertz.
ACL injuries typically require a significant recovery period, meaning Mertz could potentially miss the entire 2026 season and face another long rehabilitation process.
For now, the key word is believe. Until the additional testing is completed, the Texans have not publicly confirmed the final diagnosis.
3. Houston May Need More QB Depth
The injury could force Houston to make a move.
C.J. Stroud remains the Texans’ starting quarterback, while Davis Mills is currently ahead of Mertz on the depth chart. Mills ended up playing the entire second half after Mertz left the game.
That means the immediate impact on the starting offense should be limited.
Still, NFL teams don’t like entering a season without enough experienced quarterback depth. If Mertz is ruled out for the season, Houston could look at free agents, trades or other roster options to strengthen the room.
This is particularly important because preseason games are designed to evaluate depth. Losing a quarterback at this stage can change the team’s plans quickly.
What This Means for Graham Mertz
Mertz’s NFL journey has already included some difficult injury setbacks.
The Texans selected him in the sixth round of the 2025 NFL Draft, and he entered Houston’s quarterback room hoping to develop behind Stroud. Reuters noted that Mertz also missed time during his senior season at Florida and most of his rookie NFL season because of leg issues.
Another major knee injury would make this a particularly frustrating chapter.
But this is also where patience becomes important.
The next medical evaluation will determine the exact severity of the injury and whether surgery is required. Until those results arrive, it is too early to put a precise recovery timeline on Mertz.
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The Graham Mertz injury adds another name to the growing list of NFL players dealing with health concerns during the preseason. With teams making final roster evaluations and preparing for the 2026 regular season, every injury update can have an impact on depth charts and player availability. For more breaking player updates, recoveries and the latest news around the league, check out our NFL Injuries coverage.
Bottom Line
The Graham Mertz injury is a serious concern for the Houston Texans. Mertz left the preseason opener with a knee injury, and the team reportedly fears he suffered a torn ACL. Additional testing is expected to confirm the diagnosis.
If the ACL tear is confirmed, Mertz could miss the 2026 season, while Houston may need to add another quarterback to its depth chart.
For now, Texans fans should watch for the official medical update. That will turn this from an injury scare into a confirmed diagnosis — and determine what comes next for Mertz.
FAQs
What happened to Graham Mertz?
Graham Mertz suffered a knee injury while playing for the Houston Texans against the Los Angeles Chargers in the preseason.
Did Graham Mertz tear his ACL?
The Texans reportedly believe Mertz suffered a torn ACL, but additional testing is expected to confirm the injury.
Is Graham Mertz out for the 2026 season?
If the ACL tear is confirmed, the injury is expected to be season-ending.
Who is the Texans’ backup quarterback?
Davis Mills is currently ahead of Mertz on Houston’s quarterback depth chart behind starter C.J. Stroud.
When will Graham Mertz’s injury be confirmed?
Additional testing is expected to provide a clearer diagnosis and determine the full extent of the knee injury.







