The Chelsea captain believes the current Three Lions squad have plenty of world class stars.
The Chelsea centre-back believes that the domination of the top four Premier League teams in the Champions League bodes well for the Three Lions who, he says, have plenty of their own world class stars.
"Looking at this current squad, with the teams doing well in the Champions League and across Europe, [we've got] some world class players," Terry told a press conference.
"Stevie [Gerrard], [Frank] Lampard, Rio [Ferdinand], these kind of players are on fire and bringing that into the England squad.
"We've got some great young players coming in full of confidence and bringing a lot of difference to the team and I think we're seeing younger players pushing for a starting place and really believing they can come into this team."
Wayne Rooney's discipline has been called into question of late, but Terry believes his so-called 'temper' is what makes him such a unique and world class player.
"I think some plyaers are born like that, with that passion and fire inside their belly and Wayne's certainly got that. I think if we try and take that away he won't be the player he is. He is a world class player, let's let him get on with his football and let his football do the talking.
"I think the key is to keep him fit, keep him well and keep him on the ball. If you get Wayne Rooney on the ball he can create all-sorts. He can score goals, he brings people into play, you keep him well and England have got a great chance."
The 28-year-old also believes the friendly against Slovakia will be a good test for England before the World Cup qualifier against Ukraine next Wednesday.
"The manager doesn't treat these friendlies lightly, neither do the players and we're going out there to win the game.
"They're a very big test, they play pretty similar to Ukraine as well, they're top of their group, they've got some good players in their side, so it's going to be a good test.
"The main thing is, obviously if we can get the right result, fantastic, but that everybody stays fit and comes out of the game unscathed."
On his own personal achievement, he remarked, "it's been a long time coming. I'm delighted to be hopefully getting my 50th cap."
When asked whether he would consider handing the captain's armband over to David Beckham should he make a record 109th appearance for an outfield player, he responded, "it's a bridge I'll cross when we come to it.
"I'm very proud to be England captain I've worked very hard to get where I am, [but] its a fantastic occasion for him, what an achievement it is."
Refusing to be drawn on speculation that his mother had been caught shoplifting, he stated, "at the age I am now, experiencing too many headlines, as a player you get on with it.
"It's a family issue that the solicitors are dealing with. I'm fully concentrated on my football, like I was this morning in training. It doens't affect myself or the players and that's the main thing. We go out for tomorrow's game fully focused."
Ricky Brooks, Goal.com