Summary Currently the problem of aggression is very important in the entire world. Many people think that aggression is more common only in some kinds of sport and that requires analysis and special solution of the problem. The object of the research is expression of sportsmen aggression. The goal of the research is to analyse peculiarities of aggression expression of rugby and volleyball players. Tasks: 1. To investigate dependence of aggression expression of rugby and volleyball sportsmen depending from different kinds of sport. 2. To investigate coherence of aggression expression and sportsmen sex. 3. To analyse and compare measures of pedagogical effect recommended by coaches and sportsmen. The hypothesis is that the level of peculiarities of rugby and volleyball sportsmen aggression expression differs. Conclusions: 1. After the research of rugby and volleyball sportsmen aggression dependence from different kinds of sport, we can state, that the difference of harm expression forms of rugby-volleyball players is significant, statistically reliable (p<0,001). More than volleyball players, rugby players express envy and hate for the people round about. 2. After determination of aggression expression in aspect of sex, the result was a statistically reliable difference among averages of female and male opposition index. Therefore we can state, that female opposition for the people round about is smaller than of male. The results of all forms... [to full text]