A growing injury crisis in women’s football has prompted a stronger global response, with leading leagues and organisations now aligning to tackle one of the sport’s most serious physical challenges. In a major step forward, the National Women’s Soccer League has officially joined Project ACL, an international initiative focused on reducing anterior cruciate ligament injuries in the women’s game.
The move brings the United States based league into a research driven collaboration that began in the Women’s Super League two years ago. Project ACL was launched following increasing concern over the rising number of ACL injuries among female footballers and a lack of comprehensive research into why they occur so frequently.
Studies across sports medicine have consistently shown that female athletes are significantly more prone to ACL injuries than their male counterparts, with some research suggesting the risk is more than double. Factors such as anatomical differences, hormonal influences, biomechanics, and training environments have all been identified as potential contributors. However, experts agree that the existing data remains limited, particularly at the elite level, where demands are more intense and varied.
Project ACL aims to bridge this gap by adopting a holistic and evidence based approach. Rather than focusing solely on physical causes, the initiative examines broader elements such as match scheduling, travel demands, recovery periods, and training conditions. This comprehensive framework is designed to uncover patterns and risk factors that may otherwise go unnoticed. The inclusion of the NWSL and its players’ association strengthens the project’s global reach. They will collaborate with key partners including Nike, Leeds Beckett University, and FIFPRO. Together, these organisations are working to develop practical, research backed solutions that can be implemented across leagues worldwide.
Since its inception, Project ACL has already gathered valuable insights. Researchers have conducted surveys with staff from all 12 clubs in the English top division and interviewed more than 30 players to understand their experiences. The project is also leveraging advanced monitoring tools to track player workload, travel schedules, and recovery windows. One key metric being studied is the frequency of matches played with less than five days of rest, often referred to as critical zone appearances, which may increase injury risk.
The formal announcement of the NWSL’s participation took place at Nike’s headquarters in New York, underlining the importance of collaboration between governing bodies, leagues, and commercial stakeholders in addressing player welfare.
“We believe that player-centricity and collaboration with key stakeholders are central to establishing meaningful change in the soccer ecosystem and that players, competition organizers and stakeholders around the world will benefit from Project ACL’s outputs and outcomes,” said Dr. Alex Culvin, FIFPRO’s director of women’s football.
From the league’s perspective, the initiative aligns closely with its long term vision. The NWSL has increasingly prioritised player health and performance, recognising that sustainable growth depends on protecting its athletes.
“This is an area where we intend to lead,” said Sarah Gregorius, the league’s vice president of sporting. “By continuing to invest in this work, we can help build environments where our players are better supported and able to perform at their best.”
The urgency of the issue has been highlighted by recent global tournaments. More than 25 players were forced to miss the FIFA Women’s World Cup due to ACL injuries, raising concerns about workload management and long term athlete welfare. Within the NWSL itself, injuries continue to impact teams. Gotham FC defender Kayla Duran recently suffered a season ending ACL injury, adding to a growing list of players sidelined by similar setbacks.
As women’s football continues to expand rapidly in terms of visibility, competitiveness, and commercial value, initiatives like Project ACL are becoming increasingly vital. By combining scientific research with real world data and athlete input, the project aims to create safer playing environments and extend player careers.
The collaboration marks a significant shift towards proactive injury prevention rather than reactive treatment. If successful, Project ACL could reshape how the sport approaches player health, setting new standards that benefit athletes at every level of the game.
