On Tuesday, Mirzazadeh defeated Azerbaijan’s Sabah Shariati in the quarter-final stage.
It's the first medal for the Iranian contingent at the marquee sports event.
Cuba’s Mijaín López defeated Yasmani Acosta of Chile 6-0 to win the gold medal in the Olympics.
Earlier, Mirzazadeh defeated American opponent Adam Coon 3-0 in the category of 130 kg.
But, he lost to his Cuban rival and defeated his opponent from South Korea in his previous matches.
Press TV