Despite being on the ropes for the bulk of the game at the Estadio Metropolitano Roberto Meléndez, Peru bagged all three points with a later winner from the DC United player.
Having finished up with an identical record to Senegal in Group H, Japan go through to the last 16 by virtue of having picked up two bookings fewer.
The tie was over following a fine bit of play from Luis Suárez outsmarting Garay and finding Coutinho who slotted home for his first goal in a Barça shirt
No additions, no departures. Real Madrid manager Zinedine Zidane puts the togetherness of his group of players ahead of bringing in new faces.