 Complete the following phrase:  Serik Kerimbekuly Konakbaev , Serik Kerimbekuly Qonaqbaev; ; born October 25, 1959 in Pavlodar, Kazakh SSR is a retired Kazakh amateur boxer, who represented the USSR at the 1980 Summer Olympics in Moscow, Soviet Union. There he won the silver medal in the light welterweight division  63.5 kg, after being defeated in the final by Patrizio Oliva of Italy. Two years later he once again captured the silver medal, this time at the 