On 29 July 2020, he returned to Krasnodar, signing a 2-year contract with a 1-year extension option.

[4] On 8 February 2023, Smolnikov returned to Lokomotiv Moscow on a contract until the end of the 2022–23 season.

[7] Smolnikov was called up by Fabio Capello to the Russia squad for the first time on 4 October 2013 for the 2014 FIFA World Cup qualification matches against Luxembourg and Azerbaijan.

[8] He made his debut for the national team on 19 November 2013 in a friendly against South Korea.

This biographical article related to a Russian association football defender born in the 1980s is a stub.