Di Maria spoke to his Argentina team-mate after the Copa del Rey final and, despite suggestions he is unhappy at the Nou Camp, believes the only concern Messi has is turning Barcelona's season around in the next month.
"I talked to him [after the cup final] and he's calm and happy," Di Maria told Radio America.
"I think that things aren't going well for Barca and that affects him and it shows.
"Moreover opponents know him better than ever and that counts too. I don't think Leo is having a hard time."
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