PSG boss Unai Emery is also confident that his side can end talk of Real clinching a third European title on the bounce.
Chelsea face Barcelona in the last 16 of Europe's elite club competition in February, but the Italian said his team could be in for another nasty surprise on the domestic front if they made the mistake of looking too far ahead.
"For the potential of the two teams, luck has worked out this way and one of the two teams will be out at the last 16 stage, which we think is a bit soon taking into account they are two of the contenders for the title", Butragueno told BeIN Sports Spain.
"Chelsea are the champions of the Premier League but we will play with enthusiasm because, although it will be hard, it's a very nice tie for us and for the supporters".
"I think it is a good draw".
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"I have to be realistic, we have to face this situation with these players".
"It will be nice".
"We must be very realistic to understand that this league is very risky", Conte, whose side lost 1-0 at struggling West Ham United on Saturday, told a news conference. I like to win and when we lose, I'm not happy. We will see how we arrive at the games.
"One always says that it is a disadvantage to play at home in the first-leg, which is right - it certainly won't be an advantage - but we are strong enough to accept that and we will give our all".