Although the Three Lions are the overwhelming favourites to win the match, the Tottenham Hotspur man believes that there is no room for complacency at the tournament.
"In football, you really can't get carried away and look too far ahead because that's when things go wrong," the Daily Mail quotes Dier as saying.
"Every game is different but the most important thing, no matter who you're playing, is to have the ultimate respect for them. Our attitude has to be perfect for every game.
"There won't be any easy games here, that doesn't exist any more at the World Cup, it's a myth. You can make a game easy or you can make a game extremely hard - and the opposition can do the same to you."