The Brazilian scored a stunning strike for his country in the 4-0 win over Paraguay last week.
Signed from Barcelona on loan last month, Coutinho knows he must perform at Villa to seal his spot for Brazil at the 2022 World Cup.
He said, via the Express & Star: "It doesn't change anything, just like before it doesn't either.
"I want to keep working to evolve. At clubs we have to do our best to be able to come back."
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