Tottenham manager Mauricio Pochettino says he was confused when he heard he had been given a two match touchline ban.
It comes after he confronted referee Mike Dean at the end of a 2-1 defeat for Spurs against Burnley in the Premier League.
Pochettino says he would like the decision explained to him.
"I am a little bit in shock because it's completely unfair," he said.
"What they can do now? Nothing.
"I feel a bit sad with the punishment.
"I need to see the reason, because they announced that I am going to be banned for two games but we still don't know the reason."
