Worthington was sent from the sidelines half-an-hour into the controversial game, which saw the Blades' Iffy Onuora dismissed for elbowing Malky Mackay.
Worthington, who was given a one-game touchline ban and fined £500 for his actions said: “I am disappointed with the outcome, especially as there was nothing in it. It was a very petty situation brought before the panel by the referee.”
“I said certain things but there are things that the referee claims I said that I certainly did not, no way,” he said.
The touchline ban will be in effect for the game at home to Walsall on December 21st.