Thomas Tuchel praised hat-trick hero Kylian Mbappe for his response after finding it "difficult" against Borussia Dortmund, with the forward's partnership alongside Neymar crucial to Paris Saint-Germain.
With PSG lining up in an unfamiliar 4-3-3 formation, Mbappe struggled to make an impact during the first leg of the last-16 Champions League tie away in Dortmund last month.
However, since the 2-1 defeat in Europe, France international Mbappe has flourished in domestic action, scoring six goals in three games.
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Mbappe's hat-trick on Wednesday helped PSG progress to the Coupe de France final in style, with head coach Tuchel delighted at the 21-year-old's display in the 5-1 thrashing of Lyon.