BARCELONA, April 17 — Ousmane Dembele said there was never any doubt Paris Saint-Germain could overturn a first-leg deficit against Barcelona as the French champions won 4-1 in Spain on Tuesday to reach the Champions League semi-finals.

Trailing 3-2 from last week’s clash in Paris, Luis Enrique’s PSG fell further behind in the tie when Raphinha turned in Lamine Yamal’s cross in the 12th minute.