With his team trailing 2-1 and Paris Saint-Germain pushing hard for another goal, Barcelona coach Xavi Hernández's substitutions paid off immediately.
Midfielder Pedri set up the equalizer for Raphinha within a minute of coming on at Parc des Princes stadium.
Then, two minutes after his introduction, central defender Andreas Christensen headed home from a corner to give Barcelona a 3-2 win in the first leg of their Champions League quarterfinal on Wednesday.
