Clubs continue to pull their key men from international duty, only to then call upon those stars when domestic action resumes days later.
"It would be very interesting for Fifa and Uefa to make a study of players who have not played in any national team and who will play on Saturday or on Tuesday and Wednesday in the Champions League," said the Frenchman.
"That would be the interesting thing to see.
"I just think it's a sad situation that a friendly game was before games five and six in the Champions League and before important league fixtures.
"Many players have pulled out because this friendly is very badly positioned.
"We've never withdrawn any player. Our players, unless they have a big injury, we send them.
"We ask them to be cautious with them, especially in friendlies - and this usually happens with national teams because they are not crazy.
"The rules exist. If players are injured and did not play the game before, they do not have to report for the game.
"If the player has played in the game before, you have to send them to get examined by the doctor and they decide if a player comes back or not.
"Theoretically, if you do not play in the national team, you cannot play in the game after in the championship - that is the rule. That is why we always send our players.
"You have to ask the question is the fixture wrong or are the players wrong? I say the fixture."