The opening goal came against the run of play in the 23rd minute, a brutal testament to Chile's relentless pressure on Spain's Tiki-Taka.
Alexis Sánchez, the Barcelona winger who knew the Camp Nou intimately, pounced on a loose ball in midfield, driving forward with explosive pace and purpose as he tore down through their half.
His shot from the edge of the penalty area was perfectly placed, a laser-guided missile that left Iker Casillas with no chance as the ball skidded through the grass and hit the net.
The Chilean supporters, a vibrant pocket of red in the sea of Spanish colors, erupted in rapturous celebration. The Spanish bench remained calm, a collective understanding that this was exactly the kind of scenario that friendly matches were designed to test.
