Leicester and England great Peter Shilton believes the giants of European football will all want to avoid the Foxes in the Champions League quarter-finals.
The East Midlands outfit are the last English team left in the competition after Manchester City were knocked out by Monaco on Wednesday.
Craig Shakespeare's side will discover their next opponents in Friday's draw after they beat Sevilla 3-2 on aggregate following a 2-0 win at the King Power Stadium on Tuesday.
Real Madrid, Barcelona, Atletico Madrid, Juventus, Bayern Munich, Monaco and Borussia Dortmund have been European champions 24 times between them and are all possible opponents for debutants Leicester.
Juventus' Gianluigi Buffon and Madrid boss Zinedine Zidane have already said they do not want to face the Foxes and former goalkeeper Shilton, England's record appearance holder, understands that point of view.
It's what teams will think. They're going to cause problems to anyone they play.
It's not going to be easy but they are through to the quarter-finals and anyone who is there can win it. But you're not going to start shouting from the rooftops and saying they definitely will because there are too many wonderful sides.
I hope they get Real or Barcelona, the fans will want to see that. They have done the country proud.
Obviously it hasn't been a great season up until now, it was the heights of utopia to the depths of despair in three-quarters of a season and everyone was shaking their heads. To get into the quarter-finals is a terrific achievement and anything more would be a dream.
West Ham boss Slaven Bilic admits Leicester have been vindicated in their decision to axe Claudio Ranieri.
The Italian's sacking last month met with widespread condemnation after he led the Foxes to their shock Premier League title success last season.
But Leicester have been rejuvenated under Ranieri's replacement, Craig Shakespeare, having won back-to-back domestic games before Tuesday's epic victory over Sevilla to secure a place in the Champions League quarter-finals.
Bilic, whose side host the now flying Foxes on Saturday, was among those baffled by Ranieri's departure - but says the results since he left do not lie.
I said after they changed manager what I thought about it and still I don't understand it. But if you talk about results and performances they got what they wanted.
Still for me it was a bad decision, Claudio did very decently with them. But it's the nature of the job, you are the first one to pay the price.
No one can say it was the wrong decision, the three results have been brilliant and the team looks different.
It's a different team to four weeks ago. They played extremely well especially against Sevilla. It's a great result for them and for English football.
In all those three games they looked very lively, three wins on the spin including qualifying for the quarter-finals of the Champions League gives them a big boost.
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Marc Albrighton has warned Europe's elite that Leicester will continue to upset the establishment.
The winger scored the Foxes' second in their 2-0 win over Sevilla to send them into the Champions League quarter finals 3-2 on aggregate on Tuesday.
It was just his second goal of the season - having scored Leicester's first ever Champions League strike at Club Brugge in September - after Wes Morgan opened the scoring to put the hosts ahead on away goals.
They lost the first leg 2-1 in Spain but recovered and could now face holders Real Madrid, Barcelona or Bayern Munich in the last eight.
Ahead of Friday's draw, Albrighton insisted the Foxes are not about to stop the shocks now.
I don't think I saw one person say we were capable of going and winning it (against Sevilla). We have defied the odds there, we will go and do it again.
I don't know whether they will fear us or whether teams might want us as it is odd seeing Leicester among those names but Sevilla didn't expect what they got.
They didn't expect us to be so in their face. If other teams come here they will obviously have to be wary of that. I would take anyone, there is not a bad team in there. Anyone would be fantastic.
We will continue to enjoy this and see how far we can go.
You don't enter a competition and aim not to win. We want to go all the way and believe we can. We believed we could win this game and the next step is the quarter-finals.
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Leicester midfielder Danny Drinkwater has backed Craig Shakespeare to stay beyond the summer as the Foxes prepare for their Sevilla showdown.
New boss Shakespeare was named as the club's new manager until the end of the season on Sunday.
He replaced Claudio Ranieri after the Italian was sacked last month, just 24 hours after Leicester's 2-1 Champions League last 16 first leg defeat in Seville.
Shakespeare, who was Ranieri's assistant, takes charge of his first game as a full-time manager in the second leg at the King Power Stadium on Tuesday and insists he has not thought about the job beyond the end of 2016/17.
But Drinkwater wants to see the new manager stay for a long time.
On behalf of all the players I think all of us would like to see him get the job long term.
It's a great appointment. It's a good fit. We haven't got much time to turn things around but there's no better person for the job.
I don't think it's changed an awful lot. He needs to take control more as manager and any changes he's made have been positive for the players.
He's been a pleasure to work with as manager - but he's taken different roles as a coach. He helps us enjoy the football. It's not only for the players and manager but one of the biggest games in the club's history.
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Middlesbrough head coach Aitor Karanka has warned Premier League champions Leicester they will not get want-away midfielder Gaston Ramirez on the cheap.
Karanka confirmed that the 26-year-old Uruguay international has handed in a transfer request, and that the Foxes have had a bid for his services rejected as he faces a battle to hang on to a man the Teessiders worked hard to sign on a permanent basis during the summer.
Karanka said: "Yes, he's handed in a transfer request, but the offer that we received is not good enough.
"It's more than difficult, it's frustrating because he was calling us to play here last season. He played his best last season, he went back to the national team again playing with us and to have this situation is frustrating as a coach and as a person."
Leicester boss Claudio Ranieri was coy when asked a bout the situation at his pre-match press conference.
The Italian said: "This is not my matter. I am head coach, I am not manager. I don't speak about money."
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