Swansea boss Paul Clement says he was "surprised" not to receive any contact from referees' chief Mike Riley after the Swans' 1-1 draw at Old Trafford.
United led from a disputed penalty after a challenge on Marcus Rashford, with Clement claiming the forward 'deceived' referee Neil Swarbrick.
"I have had no communication at all from anyone," he explained.
"It surprised me because of the nature of it and the position that we are in. I've not heard from Mike Riley."
He continued: "I chose not to put any call into the FA on this occasion I felt that I had made my point very clearly in the media afterwards.