Buffalo Bills grounds crews tore out the entire grass playing surface at Highmark Stadium after the Kentucky bluegrass installed in October 2025 never developed a sufficiently established root structure, forcing an emergency replacement two weeks before the team's home opener against the Detroit Lions. Players had already gouged out large chunks of sod during preseason games against the Carolina Panthers and Pittsburgh Steelers, exposing patches of bare dirt on a field inside a stadium that cost roughly $2.2 billion to build.
The replacement came after just two preseason games and two open practices on the new surface, according to The Athletic, which first detailed the field's failure. M&K Turf owner and operator Matteo Bartolotta, who worked with the Bills' grounds director, called the field replacement a temporary speed bump in the new stadium's process, telling the outlet that swapping the surface was the right call ahead of an unusually demanding stretch: Highmark Stadium is set to host three straight games in 18 days, starting with Thursday Night Football against Detroit. The team had held no stadium events between the October 2025 sod installation and a public practice on August 8, 2026, giving the grass little exposure before it was suddenly asked to withstand NFL contact.
What Went Wrong Underground
The bluegrass showed brown spots consistent with possible dollar spot fungus or brown patch fungus, and the surface also displayed a high percolation rate that affected both drainage and nutrient retention, per the same account in The Athletic. An unnamed sports agronomist cited in that reporting attributed the problems to a combination of possible disease, overwatering, and insufficient wetting agents. The replacement field's durability remained an open question.
George Toma, known across the sport as the Sodfather, did not mince words when the outlet asked him about the failure: he called it terrible and suggested somebody fell asleep. Toma had overseen every Super Bowl field until three and a half years before the article, giving his blunt assessment particular weight among people who tend fields for a living. He also discussed the profession's finances.
A High-Tech Field Meant to Beat Buffalo Winters
Highmark Stadium's field sits atop a multi-layer design built on 10 inches of porous sand over a SubAir vacuum and aeration system, hydronic root-heating pipes, and mobile UV grow lights, according to Athletic Business. The venue also relies on sensors tracking oxygen, temperature, and moisture, and the Bills have invested in grow-light technology specifically for shaded areas of the field, per The Athletic's reporting. Even so, the new stadium's design presents airflow considerations.
Consultant Tony Dick, cited in the same Athletic report, raised concerns about the field's safety. The Bills have already installed thousands of perforated metal panels to create wind confusion, according to the outlet. The 60,000-seat stadium's 360-degree overhang canopy, engineered to cover 65 percent of seats from precipitation, is part of what complicates natural airflow across the turf, per CBS News New York. A 2007 OhioLINK thesis by J Yan says modern stadium design can create shaded environments that substantially increase stress on turfgrass used for sports.
Why Grass, and Why Now
The Bills switched to grass in 2026 for the first time since 1972, a decision that lines up with the NFL Players Association's data showing 92 percent of its members prefer natural grass over artificial turf. That preference is backed by injury tracking: NFLPA data from 2012 to 2018 found players suffered a 28 percent higher rate of non-contact lower-extremity injuries on turf than on grass, including a 69 percent higher rate of foot and ankle injuries, according to the NFL Players Association. A peer-reviewed study in the American Journal of Sports Medicine examining the 2021 and 2022 seasons found players faced 1.6 times higher odds of season-ending lower-extremity surgery on turf compared with grass, according to research published on PubMed Central.
With Highmark Stadium's conversion, the NFL now stands at 16 grass stadiums and 14 turf stadiums league-wide, per data compiled by LawnStarter. Seven of 11 NFL stadiums used for the FIFA World Cup replaced artificial turf with grass, since FIFA requires grass playing surfaces for its matches — part of a broader wave of stadiums moving toward natural fields. But grass demands relentless upkeep even at established venues: the Miami Dolphins resod Hard Rock Stadium eight to 10 times a year, and the Denver Broncos resod their field twice annually, according to The Athletic's reporting.
The Cost of Getting It Right
Routine annual maintenance for a natural grass NFL field typically runs from $1 million to several million dollars annually, and a full-field re-sodding procedure like the one Highmark Stadium just underwent can cost between $250,000 and $500,000, per LawnStarter's estimates. Those figures sit against the backdrop of the stadium's original $2.2 billion construction cost, of which $850 million came from public funds — $600 million from New York State and $250 million from Erie County — making it the largest public subsidy for an NFL stadium in history, according to The Associated Press. Erie County has since added a 6 percent surcharge on tickets, parking, food, and merchandise at the stadium to help fund a dedicated capital account for long-term venue maintenance. According to Erie County's Stadium Lease, the venue has a Capital Improvement Fund and/or Maintenance and Repair Account for stadium-related costs. An Erie County Executive announcement says ownership of the new Highmark Stadium officially transferred from Erie County to New York State on 3 Aug 2026.
The Bills say they consulted the NFL and an independent expert who works with multiple NFL teams before deciding to tear out the field, and the league inspects every field to determine whether it meets its standards. The episode is a reminder that field conditions can draw scrutiny at major sporting events. Whether Highmark Stadium's environmental controls can hold root integrity through late-autumn weather and a heavy game schedule remains an open question the Bills will have to answer in real time, starting with the Lions on Thursday night.
