Sweden head coach Janne Andersson said Monday that the atmosphere had been "fantastic" at the Nizhny Novgorod Stadium where his team beat South Korea 1-0 earlier in the day.
The stadium was almost sold out, with a total of 42,300 spectators attending the match at the 43,000-seater arena.
"The stadium is fantastic, and so was the atmosphere, I was pleased to see so many Swedish fans here. I hope we pleased them too, we won the match, though I believe we could have scored a couple of goals more," Andersson told journalists.
Sweden will next face reigning champions Germany in Sochi on Saturday.
The 2018 FIFA World Cup kicked off on 14 June and will continue until 15 July, with the matches set to be played in 11 cities across Russia.