N'oge ikpeazụ ya n'asọmpi, Chetverukhin nwetara ihe nrite ọlaọcha na 1973 European Championships na Cologne, West Germany, na 1973 World Championships
na Bratislava, Czechoslovakia. N'asọmpi abụọ ahụ, ọ gbara onye nke abụọ n'azụ Nepela.