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Real Madrid next opponent is Real Sociedad in La Liga, while in the UCL group phase Ancelotti squad will face Union Berlin. Atletico will face Valencia in La Liga, and in the UCL Group Phase Diego Simeone squad will face Lazio. It is clear that Atletico will have a slightly tough match before meeting their city rivals, while Real Madrid will have a slightly easier match.
This derby will be presented in the sixth week, victory in the fifth week of La Liga and the UCL Group Phase will be capital for both of them to appear more confident. I think Real Madrid will be able to beat Atletico at their home ground, because Rodrygo is back from injury.
Indeed Real Madrid opponent is a slightly easier rather than opponent Atletico Madrid, so yes there is a chance for Real Madrid to get points against Atletico Madrid. Because yeah there is a possibility Diego Simeone squad is tired, but in the last few matches Atletico Madrid have a good performance. Anyhow, Diego squad looks solid I doubt Real Madrid can win, but be expected Ancelotti can find a suitable tactic in that match at least to surive for draw result.