Barcelona pounded Dortmund 4-0, and PSG came from behind to pull away from Aston Villa 3-1 in the first leg of their ties

In Wednesday's other quarterfinal first leg, Paris Saint-Germain overcame a 1-0 deficit to English Premier League club Aston Villa at the Parc des Princes en route to a 2-1 victory. The decisive rematches will be played next week in Dortmund and Birmingham, respectively. Here are three quick takeaways following Wednesday's games.

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