The 19-year-old midfielder made his debut in an away 3-3 draw at Athletic, but unfortunately a first appearance in front of the home support was not as productive.
The former-Vasco player worked hard for his team, but struggled to influence the game, with a yellow card his major contribution to the encounter.
Coutinho will hope to secure a place in Brazil’s Olympic plans with a good 6-month loan spell at the Barcelona club.