The biggest and the most complex joint in the human body is the knee but it is also one of the joints that experiences the biggest pressure. Pressure on the knee can range all from the human body weight to exterior forces which are impacted while moving, carrying weight, or during some activity. The structure of the knee joint is complex considering it has to carry weight, but also move in many directions without injuring itself. The composition of the knee joint contains four crucial ligaments which implement their functions in pairs, and next to the bones and muscles, are vital for the conservation of the knee joint. The focus is set on the most common ACL injuries and they are most occurring in sports like basketball, football, gymnastics, and skiing. Next to the rehabilitation, physiotherapeutic interventions encompass evaluation, assessments (tests and measures), and plan and program of the therapy which will be implemented, as well as its goals. Two factors that are relevant for successful recovery are targeted and correctly determined exercises. Exercises that are implemented by the therapist are widely different, but some of them are: passive exercises, ROM exercises, stretching, open and closed kinematic chain exercises, strengthening, isokinetic and proprioceptive exercises. The goal of this work is to present the most common injuries of the ACL and physiotherapy interventions which are used when those injuries occur.