Philippe Coutinho says he looks forward to playing and defeating Argentina with or without Messi in their team.
Brazil play Argentina on October 16 in an international friendly, with Messi missing out after he was not included on the squad list.
The five-time Ballon d’Or winner has been left out of his country’s last two squad list since their disappointing World Cup.
Coutinho says him and his club captain do not share thoughts about their national teams.
“Messi and I don’t speak much about our national teams.
“Despite him not playing, the game will be massive – it’s one of the biggest rivalries in international football.
“I want to beat Argentina whether Messi is playing or not. What is most important for me is to play well and win the game.”
Barcelona have failed to win a game in their last four League outings, a run Coutinho says doesn’tworry him.
“It doesn’t affect me that Barcelona haven’t started well.
“Barcelona are among the top positions in LaLiga and in the Champions League.
“It’s true that it’s not normal being winless for four games in a row. However, this is the beginning of a long season, where a lot of things can happen.”