TL;DR: ACL tears in the NFL are increasingly non-contact and are affecting elite players, raising concerns about field surfaces, workload, and how modern football concentrates risk on knees. While players point to artificial turf as a key factor, the league argues the issue is more complex, keeping the debate unresolved.
ACL tears have always been part of football. What’s changed is how often they’re happening, how they’re happening, and who they’re happening to.
In recent seasons, ACL tears in the NFL have increased, with a growing share coming on non-contact plays — situations where a knee gives way on a cut, plant, or landing rather than from a hit. When those injuries start taking out face-of-the-league stars, the conversation shifts from bad luck to systemic risk.
That’s where the NFL finds itself.
What the Numbers Suggest About ACL Tears in the NFL
League injury tracking and independent analyses show ACL tears trending upward since the mid-2010s, with multiple seasons pushing into the 40-plus range compared with under 30 earlier in the decade. Just as important, a higher percentage of these injuries are non-contact ACL injuries, particularly among wide receivers, defensive backs, and edge rushers.
Non-contact ACL tears matter because they point away from collisions and toward environmental and workload factors — how athletes move, where they play, and how often they’re asked to do it.
How ACL Tears Usually Happen
From a biomechanics standpoint, ACL injuries typically occur when several forces stack at once:
- Hard deceleration or a sharp cut
- Knee collapsing inward (valgus position)
- Trunk lean or loss of balance
- The foot staying fixed instead of releasing
At NFL speed, with modern athletes who are bigger and faster than ever, those forces can overwhelm the ligament in a split second — even without contact.
Turf vs. Grass and the Cleat Issue
No part of the discussion around ACL tears in the NFL is louder than turf vs. grass.
Several studies and summaries of NFL injury data have found higher overall lower-extremity injury rates on artificial turf than on natural grass, along with a higher proportion of injuries requiring surgery. A 2024 NIH-linked analysis reported roughly 1.44 injuries per game on turf versus 1.22 on grass, including more ACL and Achilles tears.
Players and the NFLPA argue the problem isn’t turf alone, but cleat–surface interaction — situations where a cleat grips too well and fails to release during a cut.
The league’s position is more cautious. A joint NFL–NFLPA field surface committee has pointed to seasons where non-contact lower-extremity injury rates were similar across surfaces, arguing that surface quality matters as much as surface type. Some artificial fields test safer than poorly maintained grass, and vice versa.
That gap between player trust and league data is why the debate persists.
Schedule, Speed, and Year-Round Load
Field surface is only part of the story.
Modern football places extreme stress on knees:
- Year-round training and specialization
- Shorter offseasons
- Faster, spread offenses demanding repeated full-speed cuts
- Longer seasons and discussion of an eventual 18-game schedule
None of these alone causes ACL tears. Together, they concentrate risk, especially late in the season when fatigue and micro-injuries accumulate.
Why This Season Changed the Tone
This year’s conversation escalated when elite players went down.
Micah Parsons, now with the Packers, tore his ACL on a non-contact rush in Week 15, a season-ending injury for a Defensive Player of the Year-caliber defender. Days later, Patrick Mahomes suffered a torn ACL on a plant while scrambling late against the Chargers, abruptly ending Kansas City’s season and a decade-long playoff streak.
When rotational players tear an ACL, it’s unfortunate. When MVP-level players do it on non-contact plays in the same week, it becomes something else entirely.
These injuries didn’t introduce new arguments — they amplified existing ones.
Where the Debate Stands
Players and agents increasingly frame ACL and Achilles spikes as a preventable player-safety issue, tied to artificial turf, specific venues, cleat design, and longer seasons with limited recovery.
The NFL maintains there is no single cause and no simple fix, emphasizing incremental changes: improved turf systems, stricter field testing, refined cleat guidelines, and ongoing injury surveillance rather than a blanket grass mandate.
Both sides point to data. Both sides claim nuance.
The Bigger Question
ACL tears will never disappear from football. The sport is too fast and too violent for that.
The real question isn’t whether ACL tears in the NFL can be eliminated — it’s how much preventable risk the league is willing to accept, and whether losing its most marketable stars to non-contact knee injuries is a cost worth absorbing.
For players, it’s a health issue.
For teams, it’s competitive.
For the league, it’s business.
And that’s why this debate isn’t going away.
FAQ
Are ACL tears increasing in the NFL?
Yes. Injury tracking shows ACL tears in the NFL have trended upward since the mid-2010s, with recent seasons seeing more total tears and a higher percentage of non-contact injuries.
Why are so many ACL tears non-contact?
Non-contact ACL injuries often occur during sharp cuts, deceleration, or awkward landings when the foot stays planted and the knee absorbs excessive force. Modern NFL speed, size, and cutting demands amplify this risk.
Is artificial turf causing more ACL injuries?
Studies and player data suggest higher lower-extremity injury rates on artificial turf than on grass, including more ACL and Achilles tears. The NFL counters that surface quality and maintenance matter as much as surface type.
Why are players blaming turf fields?
Players and the NFLPA argue that cleat-surface interaction on turf can cause the foot to “stick” rather than release, increasing stress on the knee during cuts and pivots.
What does the NFL say about the ACL injury spike?
The league says there is no single cause, pointing to mixed injury data across surfaces and emphasizing incremental fixes like improved turf systems, better field testing, cleat guidelines, and continued injury research.
Why did the Mahomes and Parsons injuries change the conversation?
Both injuries were non-contact, season-ending ACL tears to face-of-the-league players late in the season, intensifying concerns that preventable risks are costing the NFL its biggest stars.
Read more SportsEpreneur NFL Coverage
Eric Kasimov is the founder of SportsEpreneur, part of the KazSource media network. Since launching the platform in 2015, he has hosted over 500 podcast episodes, written and published more than 1,500 articles, and advised business leaders, founders, and creators on building authority through media strategy.
Through his brands — KazSource, KazCM, SportsEpreneur, and QuietLoud Studios — Eric leads teams that produce podcasts, develop brand platforms, and help companies grow through modern content ecosystems. He also scaled KazSource Insurance into a seven-figure boutique agency, providing the foundation for the broader media network he operates today.
His work has been featured in Forbes, Axios, and Front Office Sports, and his podcasts have included conversations with top founders, investors, and athletes turned entrepreneurs.
Why ACL Tears Are Spiking in the NFL — And Why the Debate Isn’t Going Away
TL;DR: ACL tears in the NFL are increasingly non-contact and are affecting elite players, raising concerns about field surfaces, workload, and how modern football concentrates risk on knees. While players point to artificial turf as a key factor, the league argues the issue is more complex, keeping the debate unresolved.
ACL tears have always been part of football. What’s changed is how often they’re happening, how they’re happening, and who they’re happening to.
In recent seasons, ACL tears in the NFL have increased, with a growing share coming on non-contact plays — situations where a knee gives way on a cut, plant, or landing rather than from a hit. When those injuries start taking out face-of-the-league stars, the conversation shifts from bad luck to systemic risk.
That’s where the NFL finds itself.
What the Numbers Suggest About ACL Tears in the NFL
League injury tracking and independent analyses show ACL tears trending upward since the mid-2010s, with multiple seasons pushing into the 40-plus range compared with under 30 earlier in the decade. Just as important, a higher percentage of these injuries are non-contact ACL injuries, particularly among wide receivers, defensive backs, and edge rushers.
Non-contact ACL tears matter because they point away from collisions and toward environmental and workload factors — how athletes move, where they play, and how often they’re asked to do it.
How ACL Tears Usually Happen
From a biomechanics standpoint, ACL injuries typically occur when several forces stack at once:
At NFL speed, with modern athletes who are bigger and faster than ever, those forces can overwhelm the ligament in a split second — even without contact.
Turf vs. Grass and the Cleat Issue
No part of the discussion around ACL tears in the NFL is louder than turf vs. grass.
Several studies and summaries of NFL injury data have found higher overall lower-extremity injury rates on artificial turf than on natural grass, along with a higher proportion of injuries requiring surgery. A 2024 NIH-linked analysis reported roughly 1.44 injuries per game on turf versus 1.22 on grass, including more ACL and Achilles tears.
Players and the NFLPA argue the problem isn’t turf alone, but cleat–surface interaction — situations where a cleat grips too well and fails to release during a cut.
The league’s position is more cautious. A joint NFL–NFLPA field surface committee has pointed to seasons where non-contact lower-extremity injury rates were similar across surfaces, arguing that surface quality matters as much as surface type. Some artificial fields test safer than poorly maintained grass, and vice versa.
That gap between player trust and league data is why the debate persists.
Schedule, Speed, and Year-Round Load
Field surface is only part of the story.
Modern football places extreme stress on knees:
None of these alone causes ACL tears. Together, they concentrate risk, especially late in the season when fatigue and micro-injuries accumulate.
Why This Season Changed the Tone
This year’s conversation escalated when elite players went down.
Micah Parsons, now with the Packers, tore his ACL on a non-contact rush in Week 15, a season-ending injury for a Defensive Player of the Year-caliber defender. Days later, Patrick Mahomes suffered a torn ACL on a plant while scrambling late against the Chargers, abruptly ending Kansas City’s season and a decade-long playoff streak.
When rotational players tear an ACL, it’s unfortunate. When MVP-level players do it on non-contact plays in the same week, it becomes something else entirely.
These injuries didn’t introduce new arguments — they amplified existing ones.
Where the Debate Stands
Players and agents increasingly frame ACL and Achilles spikes as a preventable player-safety issue, tied to artificial turf, specific venues, cleat design, and longer seasons with limited recovery.
The NFL maintains there is no single cause and no simple fix, emphasizing incremental changes: improved turf systems, stricter field testing, refined cleat guidelines, and ongoing injury surveillance rather than a blanket grass mandate.
Both sides point to data. Both sides claim nuance.
The Bigger Question
ACL tears will never disappear from football. The sport is too fast and too violent for that.
The real question isn’t whether ACL tears in the NFL can be eliminated — it’s how much preventable risk the league is willing to accept, and whether losing its most marketable stars to non-contact knee injuries is a cost worth absorbing.
For players, it’s a health issue.
For teams, it’s competitive.
For the league, it’s business.
And that’s why this debate isn’t going away.
FAQ
Are ACL tears increasing in the NFL?
Yes. Injury tracking shows ACL tears in the NFL have trended upward since the mid-2010s, with recent seasons seeing more total tears and a higher percentage of non-contact injuries.
Why are so many ACL tears non-contact?
Non-contact ACL injuries often occur during sharp cuts, deceleration, or awkward landings when the foot stays planted and the knee absorbs excessive force. Modern NFL speed, size, and cutting demands amplify this risk.
Is artificial turf causing more ACL injuries?
Studies and player data suggest higher lower-extremity injury rates on artificial turf than on grass, including more ACL and Achilles tears. The NFL counters that surface quality and maintenance matter as much as surface type.
Why are players blaming turf fields?
Players and the NFLPA argue that cleat-surface interaction on turf can cause the foot to “stick” rather than release, increasing stress on the knee during cuts and pivots.
What does the NFL say about the ACL injury spike?
The league says there is no single cause, pointing to mixed injury data across surfaces and emphasizing incremental fixes like improved turf systems, better field testing, cleat guidelines, and continued injury research.
Why did the Mahomes and Parsons injuries change the conversation?
Both injuries were non-contact, season-ending ACL tears to face-of-the-league players late in the season, intensifying concerns that preventable risks are costing the NFL its biggest stars.
Read more SportsEpreneur NFL Coverage
Eric Kasimov is the founder of SportsEpreneur, part of the KazSource media network. Since launching the platform in 2015, he has hosted over 500 podcast episodes, written and published more than 1,500 articles, and advised business leaders, founders, and creators on building authority through media strategy.
Through his brands — KazSource, KazCM, SportsEpreneur, and QuietLoud Studios — Eric leads teams that produce podcasts, develop brand platforms, and help companies grow through modern content ecosystems. He also scaled KazSource Insurance into a seven-figure boutique agency, providing the foundation for the broader media network he operates today.
His work has been featured in Forbes, Axios, and Front Office Sports, and his podcasts have included conversations with top founders, investors, and athletes turned entrepreneurs.