Kozlov made his debut in the Russian Premier League on 25 April 2010 for FC Spartak Moscow.

[1] On 16 January 2017, Kozlov signed a one-year contract with Kazakhstan Premier League side FC Okzhetpes.

[2] On 26 June 2019, Ararat Yerevan announced the signing of Kozlov along with another twelve players.

[3] On 15 July 2022, Spartak Moscow announced the death of Kozlov, reportedly as a result of a blood clot suffered during training with Zorkiy Krasnogorsk.

This biographical article related to a Russian association football forward born in the 1990s is a stub.