Philippe Coutinho has insisted that the Brazilian football team still have room for improvement despite winning seven straight matches since the appointment of coach Tite.

Despite the confidence gained under Tite, Coutinho said Brazil were far from a finished product.

"There is always something that we can improve. Tite pays a lot of attention to detail, positioning and dead-ball situations. We are playing well but he is always talking about what we need to do to get better," the Liverpool midfielder said on Saturday.

Brazil currently lead the South American zone World Cup qualifying standings with 30 points from 13 matches, seven points ahead of second-placed Uruguay.

"We have to be focused just as we were against Uruguay. Every game is complicated and every team wants to make life difficult for us," Coutinho said.

"We had a great result against Uruguay, which showed our maturity. But now we have another challenge. If we are all focused, we are confident that everything will go to plan," he added.