when was the Cuban professional boxer that stopped Moez Zemzemi in the first round of the men's bantamweight born 
Moez Zemzemi:  There he was stopped in the first round of the men's bantamweight (– 54 kg) competition by Cuba's eventual gold medalist Guillermo Rigondeaux. Guillermo Rigondeaux: Guillermo Rigondeaux Ortiz (] ; born September 30, 1980) is a Cuban professional boxer.
September 30, 1980