Kazakov was a member of the national team that won the bronze medal at the 2004 Summer Olympics in Athens. Four years earlier in Sydney he gained the silver medal. He is 2.17 metres tall, making him one of the tallest athletes in the world.
References
Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. "Aleksey Kazakov". Olympics at Sports-Reference.com. Sports Reference LLC. Archived from the original on 2016-12-03. Full name: Aleksey Valeryevich Kazakov / Original name: Алексей Валерьевич Казаков