Sanogo played only six games for the season, failing to score, and was later slated in the press by De Boer's twin brother Ronald.
"Let him talk, I hardly played...," Sanogo told France Football.
“But it was annoying, very annoying. I don't read newspapers and certainly not in another country. However, I would have liked it if he had told me this face-to-face.
"He wanted to play it through the press, that says more about him than about me."