The fear of an Anterior cruciate ligament injury, or ACL, hangs over all athletes. It is a season-ending injury, agonising, and with a long painful recovery. But why is it happening to so many female footballers? Research shows that ACL injuries are up to six times more likely to happen to female athletes than male. Former England international footballer Lianne Sanderson, who suffered an ACL injury in 2016, explores the science behind this statistic and finds out about the solutions that are being put in place. From the UK charity initiative Power Up to Play, established by medical professionals to offer preventative support at grassroots level, to experts at Oslo Sports Trauma Research Center in Norway and the team at IDA Boots who are making female-specific soccer cleats, Lianne introduces a number of solutions and learns about the science of ACL injuries in female athletes.