This report investigates the differences in knee proprioception between injured and non-injured football players. It begins by defining proprioception and its importance in movement control and sports performance, particularly in football, where knee injuries are common. The report details the mechanisms of proprioception, including the role of mechanoreceptors and central processing, and discusses various methods for testing proprioception, such as JPR, AMEDA, and TTDPM. It highlights the vulnerability of the knee joint to injury and the factors affecting proprioception, such as pain, trauma, and fatigue. The research explores both static and dynamic proprioception, and the impact of anterior cruciate ligament (ACL) injuries on proprioception. It emphasizes the need for proprioceptive training in rehabilitation programs to prevent knee injuries. The report also reviews a previous study by Paul and Nagarajan (2015) and Relph et al (2014), highlighting their findings on the impact of knee injuries on proprioception in football players. The study aims to understand the difference in proprioception between non-injured and injured knees in football players using a comparative cross sectional study.