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According to Porto midfielder Sergio Oliveira, Chelsea tried to calm down the tempo and intensity of Porto due to 2-goal advantage the Blues had.
Oliveira told TVI: “With the advantage of two goals, I think Chelsea came to manage us.
“They wanted to calm down the tempo and our intensity. If we were two goals ahead, I think we would have done the same.
“Unfortunately we scored close to the end. Our aim was to score the first goal as quickly as possible, unfortunately we were unable to do that.”