The two sides were deadlocked 0-0 after 90 minutes and when another half an hour of extra time failed to produce a goal, the contest was destined to be decided by penalties. Lionel Messi stepped up to score Argentina’s first spot kick but, as the first three Chileans converted unerringly, Gonzalo Higuain and Ever Banega missed.
That left the stage set for forward Sanchez, who made up for a quiet game by dinking the ball into Sergio Romero’s net to send the capacity crowd at Santiago’s National Stadium into raptures.
“Our whole idea was to win something, we knew that this was the moment,” goalkeeper Claudio Bravo told reporters.