Andrey Varkentin promised to treat his friends to a dinner worth 150,000 rubles if Russia reached the quarter-finals.
"I will keep on supporting Russia anyway. I think they have a chance [to win]. These days are of historic importance. I feel fantastic emotions and not only because of the team's victories but also because of the entire tournament," Varkentin told Sputnik.
READ MORE: Russia Makes History by Crushing Spain 4-3 During Penalty Shootout
Russia beat Spain on penalties at Moscow's Luzhniki Stadium on Sunday, with goalkeeper Igor Akinfeev saving Koke's and Iago Aspas’s penalties to help the host nation reach the last eight for the first time.
The 2018 FIFA World Cup kicked off in Russia on June 14 and will continue until July 15, with the games being played in 11 cities across the country.