Inclusion Criteria:  Aged 18-35 years old Playing club level Gaelic football or hurling They must report that they intend on returning to sport at the same or higher level Able to give written informed consent and to participate fully in the interventions At 7 months biomechanical testing, individuals would need to have 70% symmetry of both quadriceps and hamstring peak torque as measured on our isokinetic dynamometer with the angular velocity set to 60°/s Individuals should have already commenced linear running and double leg jumping tasks as part of their rehabilitation They are currently attending a gym or can attain gym access for the duration of intervention period  Exclusion Criteria:  They have not commenced running or jumping in their rehabilitation Revision ACL They underwent concurrent meniscal repair, chondral repair or extra-articular augmentation Serious medical conditions preventing them from completing high intensity resistance exercise Any previous: injuries to the visual system, concussion, head injury, unexplained seizures or epilepsy Any previous ankle or knee injuries Those who are uncomfortable or do not want to hop with their eyes closed (one of the assessment tasks will involve hopping on one leg with their eyes open and followed by another set in which their eyes are closed