Slovakia coach Jan Kozak has questioned how England's youngsters will handle the pressure of being favourites to win their Euro 2016 group.
Kozak's side make their European Championship debut against Wales in Bordeaux on Sunday, just hours before England play their first Group B game against Russia in Marseille.
"The top favourite (in the group) is England because they have a large squad of very good quality players," said Kozak, who played for Czechoslovakia at the 1980 European Championship.
"But this is a tournament and the pressure is on their young players.
"I am curious how they react to that pressure.
"I think it will be even between the rest of us because Wales, Slovakia and Russia all has quality.
"It depends on the day because I do not see much difference between these teams."
Kozak described Wales danger man Gareth Bale as "one of the best players in the world".
But he was giving little away when he was asked how he would combat the Real Madrid forward.
Kozak, however, said he had plenty of information on Bale as he had watched him in action for his club all season.
"He is a top player, and not just for Wales," said Kozak.
"He is one of the best players in the world, he's in great form and physically he's very fit.
"I'm a Real Madrid fan and I watch every game.
"But Wales is not just about Gareth Bale, it's a team game and they have other top players who play in top English teams.
"Bale can not be a great threat to the opponent without the team."
On Slovakia's strengths, Kozak said: " We want to succeed with team spirit and the match will show what extent we will put that into practice.
"T he preparation has gone according to plan, we have no problems, all the players are fit and ready to play.
"The vibes are good in the team and you have to look forward to something like this."
Slovakia's star man Marek Hamsik has spent the last decade at Napoli and was his country's top scorer in qualifying.
Hamsik scored five goals and the battle between him and Bale could go a long way to determining who comes out on top at the Nouveau Stade de Bordeaux.
But Hamsik said: "Gareth Bale is one of the best players in the world, but I would not like to be compared with him.
"It is not Marek Hamsik versus Gareth Bale, football is a team game and it's about a team performance.
"It is a group in which the matches will be even and we want to enjoy the tournament.
"Qualification was one thing, but we have not come here just to participate.
"We want to do well and get past the group stage."
Source: PA
