The French international was banned for four matches and handed a £15,000 fine, for his part in an incident with a Chelsea groundsman after their game at Stamford Bridge last season.
He said: “It was a shock. Of all the things the FA have done to us down the years that was one of their biggest. I could not believe it.
“You could never tell what these people are doing. Even if I was sitting having breakfast with them I would not know what they were thinking.
“But we are still waiting for the written reasons to be delivered to David Gill so we cannot really comment on what our next step will be.”