PARIS — Luis Enrique credits Pep Guardiola with inventing arguably the “perfect model” of attacking soccer. He must now outwit him when Paris Saint-Germain faces Manchester City in the Champions League on Wednesday, in a match both teams must win to avoid the prospect of early elimination in the new-look format.

Having endured the exasperation of squandering a lead several times in the Premier League, City's fortunes did not change in the UCL as well.