Le Graet described the 24-year-old's behaviour as "intolerable".
"There is a behaviour towards the exterior which is difficult," said Le Graet. "He is on the edge, we will talk and look at his problem.
"This is intolerable. I understand the negative reactions. Samir wants to do well but he simply cannot control his impulses."
Nasri also aimed a jibe at the press box following his equaliser in Les Bleus' Euro 2012 opener against England.