Diemer WM, Winters M, Tol JL, et al. - An epidemiology systematic review was conducted to calculate the incidence and recurrence rate of acute hamstring injuries in all levels of soccer. Researchers carried out to search the PubMed (including Medline), CINAHL, SPORTDiscus, Embase, and CENTRAL electronic databases. Researchers enrolled prospective studies of all levels of adult soccer players that registered acute hamstring injuries and provided a description of the incidence of acute hamstring injuries in n/1000 playing hours (or available data to calculate this). The research included 13 studies including 3,868 players. The results of this study revealed that the incidence of acute hamstring injury in soccer was 0.3 to 1.9 per 1000 exposure hours. As per the results, 4-68% was the recurrence rate. According to the data, the certainty of the evidence ranged from moderate to very low.