Carlo Ancelotti expects the winners of the Champions League to emerge from the new 'Clasico' between Real Madrid and Manchester City.

The two European heavyweights have clashed in the latter stages of the competition in the last three seasons - with the victor going on to lift the trophy - and they meet again in this year's play-off round.

The first leg takes place at the Etihad Stadium on Tuesday and, even despite City's indifferent form this season, Real boss Ancelotti still regards opposite number Pep Guardiola as the best in the business.

The veteran Italian, a five-time winner of the trophy as a manager, said: "It is always a headache to face Manchester City.

"It will be a difficult game, hard to predict. It will depend a lot on the attitude and confidence of the teams. It's such a high-level game you have to be at your best in every aspect.

"It seems like it's a 'Clasico' because we have played each other a lot of times in this competition. It's the most difficult game we can face, regardless of form.

"They are one of the best teams in Europe and they have the best manager out there. It's a nightmare preparing for games against him because he always has ideas that make you think.

"I am convinced the team that goes through from this tie will go on to win the competition."