The video's caption "see how the chocolate melts in the sun" was accompanied by a series of smiley face, sunshine and chocolate bar emojis.
The same phrase is heard during the video, apparently spoken by Spartak and Russian Federation defender Georgy Dzhikiya. Later in the day, Spartak tweeted another video of Dzhikiya being interviewed alongside Adriano, Rocha and Fernando. "We are a friendly family".
The original post was then deleted, before the club uploaded a third video with Dzhikiya and the three Brazilians in a group hug. The players had their arms around each other, and Adriano said, "This is my friend, my brother". The Krasnodar forward 10 goals in 13 matches so far during the Russian Premier League season, and scored twice against Spain in a friendly for the national team previous year.
Russia, billed to host the FIFA World Cup in June has a long history of racial prejudices and intolerance.
Piara Powar, executive director at the FARE (Football Against Racism in Europe) network, labelled racism as a major issue to be addressed in Russian Federation ahead of the World Cup.
"This shows a shocking level of ignorance. References like this show how some minorities are seen by some in the country", said Piara Powar.
Concerns remain as to the potential racist abuse black players from across the world could face when they represent their countries in Russian Federation during the World Cup 2018 this summer.
European football's governing body Uefa charged Spartak, who had to partially close their academy stadium for their next Uefa Youth League fixture, leaving 500 seats empty. Mironov denies any racist comments and has claimed Brewster made up the incident so he would be banned.
In September, Liverpool's Nigeria-born attacker Bobby Adekanye was subjected to racist chants and gestures from Spartak supporters in Moscow during a Uefa Youth League game.
"It is a reminder, that along with the whole of football, there is significant work to do to eradicate racism of all forms from the sport".