Futsal is an upcoming popular sport. It is an active dynamic sport which requires the players to perform various movements like rapidly accelerating and decelerating, and also requires them to rapidly change their direction of movement. It also involves a lot of sliding and kicking. Compared to other athletic sports played worldwide, futsal is a rather vigorous sport with increased incidence of injuries. Tightness in the hamstring muscles can lead to various injuries. The prevalence of hamstring muscle injuries is very high in futsal players due to muscle tightness. This study aims to determine the effects of Muscle Energy Technique (MET) on hamstring flexibility among futsal players. After being screened as per the inclusion and exclusion criteria, the participants were instructed in MET. The technique was performed for seven to ten seconds with twenty percent of resistive effort synchronized with the breathing pattern of the participant and then stretched to the new muscle length. This was repeated until no further gain was possible. Hamstring length was assessed using the Active Knee Extension Test (AKET) before and after the intervention, the values were then compared. The result of the study show improvements in the hamstring length following the intervention (16.50) to be statistically significant (P