I tried the site and I just get " Warming Up " and then it hangs. 

Are you modelling the concept after the Crypto Kitties concept? .. but with Sport tokens? You should definitely not use any information or logo of the FIFA world cup, because they are very protective of their Copy rights and they will shut it down.

Crypto Kitties was successful because there are a lot of Cat lovers and we also know that soccer is very popular too, so this might just work. I hope you get it done, before the World Cup starts.