Motor skills are an important aspect of success in any sport. The aim of this research is to determine the impact of specific acute fatigue on the targeted motor skills of young taekwondo players and the risk of injury. The research was conducted on 17 young taekwondo players, average age 12,47 ± 1,33. The respondents are active athletes and are included in the regular competition system. The subjects were tested in 4 tests that assessed agility, explosive strenght, flexibility and dynamic balance before and after the fatigue protocol. To assess agility, the step-to-side test (MAGKUS) was used, to assess explosive strenght, the Sargent test (MESSAR) was used, to assess flexibility, the front leg test from a standing position (MFLPSS) was used, and to assess dynamic balance, the standing balance test was used platforms where two variables were used to display the results; total antero-posterior distance traveled (PUT) and root mean square deviation (RMS). After the initial testing, a specific fatigue protocol was performed on the subjects, which consisted of 6 one-minute bouts with a one-minute break between them. In order to check the success of the protocol, we used a modified Borg scale to assess the workload, with points from 0 (fatigue is not present) to 10 (the greatest possible fatigue is present). The results of the modified Borg scale show the success of the protocol with an average score of 8,41 ± 0,76. The difference between the first and second measurements of the MAGKUS test shows us that there is a statistically significant decrease in results (t=-9,38, p=0,00). The difference between the first and second measurements of the MESSAR test also indicate a statistically significant decrease in results (t=7,88, p=0,00). On the other hand, the difference between the first and second measurements of the MFLPSS results indicates a statistically significant improvement in the results (t=-5,94, p=0,00). The results of the dynamic balance assessment test are presented through two variables, and both variables show a decrease in results that is not statistically significant; PUT (Z=0,64, p=0,52) and RMS (t=-1,45, p=0,17). By conducting research and analyzing the results, it was concluded that acute fatigue has a negative effect on all motor abilities, except for flexibility, which has a pozitive effect. The product of that is increased range of motion and reduced control of movement, which ultimately increases the risk of injury.