"I want to say to English fans: "Guys, get it together, come to Russian Federation and support your national team because they have got into the semi-final", Lopyreva said.
They beat Sweden 2-0 on Saturday, before Croatia advanced at the expense of hosts Russian Federation on penalties.
There are concerns that fatigue could be a factor for Zlatko Dalic's side, given they were forced to come through 120 minutes and penalties against both the hosts and Denmark in the last two rounds.
"I've got a amusing feeling that the momentum is so good, and, you know, especially now that we're all going to turn up with special Gareth waistcoats, and that can only help can't it", said fan Lee Walkup, 50.
It says: "We need this for all those supporting England, as the next day will not be pleasant for all fans".
I personally fancy England to win, but Croatia represent a step up from anything they have faced so far. They have not advanced to the Final since 1966, when they won it all. The Tottenham man, who wears the captain's armband for his country, is the top marksman in the tournament with six goals but in addition to his goal-scoring nous, Kane is also a willing runner and a very hard worker for his team.
Another Croatian supporter said: "This is a no contest". The France '98 semi-finalists will be looking to one of the players of the tournament, Luka Modric, to guide them one step further in Russian Federation.
The victor Wednesday advances to Sunday's final against France.
Defender Dejan Lovren dismissed suggestions that the team would be exhausted after extra time and two penalty shootouts in their last two match matches.
"This is maybe a once-in-a-lifetime opportunity".
Asked what he would be demanding from his players, the England coach told ITV: "To be able to keep doing what we have been doing, play with real defensive discipline, good organisation, tactical awareness".
Kane, who tops the Golden Boot standings in Russian Federation, had already scored and assisted as Spurs recorded a 4-1 victory in October.
It was a painful defeat for Belgium, foiled at the semi-final for the second time in their history, as the clock ticks on their so-called "golden generation" of players.
In delirious scenes in Paris, fans let off fire crackers and released smoke flares - and predicted they would win a second World Cup.
"But I like to challenge these strikers and to show to everyone that I'm one of the best defenders".
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Goerges also battled back from a set down to beat Dutchwoman Kiki Bertens 3-6 7-5 6-1 in the last of the women's quarterfinals. ". All of those wins came in straight sets, with her last victory coming in the round of 128 at the 2016 Australian Open.