The meeting, held in Madrid, ended with a score of 2: 1 in favor of the guests.
Rayo scored first.
In the 63rd minute, Francisco Garcia scored.
The victory for Barcelona was brought by goals from Lionel Messi, who distinguished himself in the 69th minute, and Freca de Jong, who scored in the 80th minute.
Thus, Barcelona reached the quarter-finals of the Spanish Cup, and Rayo Vallecano finished their performances in the tournament.
Earlier it was reported that Sevilla knocked Valencia out of the Spanish Cup.