There has long been talk that Messi will one day leave Barca, with speculation intensifying last month amid reports he was unhappy at the club after an apparent row with coach Luis Enrique.
The Argentina captain himself said his future was not certain in January and he has been linked with big-money moves to the likes of Chelsea and Paris Saint-Germain.
Manchester United midfielder Di Maria, however, feels Messi is not
looking to depart the Catalan club, but did say that he could see his
international teammate and Blues boss Mourinho -- who he played under at
Real Madrid -- working well together.
"In principle, I don't think Leo wants to leave Barcelona," Di Maria told FIFA's official website. "It's hard to walk away from a club that's given you everything, where you effectively grew up.
"But to answer your question, no I don't think he'd have any problem working with Mourinho."
As a former Madrid player, Di Maria -- who left the European
champions for Manchester United last summer -- has played alongside
Cristiano Ronaldo, as well as with Messi at international level.
He cannot, however, separate the two players, believing the pair to each have their own individual strengths.
"I always say the same thing: that they're two completely different players" he said.
"Leo features in every game, making short bursts and nonchalantly
dribbling past one, two or three players with great ball control in
tight spaces.
"Cristiano is more about power, long-range shots -- they're
different. If I were FIFA, I'd have two Ballon d'Or prizes, one for that
pair to fight over, and another for everyone else."