Enrique called up Marlon from Barca B for the night.
"He's just arrived from Brazil and I do not know if you could consider him a canterano," said the coach.
"But he has personality and has already shown that he can bring things and can help us."
On the Hoops fans jeering Neymar, Enrique added: "Neymar was in control.
"(The boos) were only five or ten minutes, the public has been spectacular ... I missed the 'You'll never walk alone', but thankfully I've seen it before because it is one of the best atmospheres that can be seen in Europe."