Jose Mourinho on Friday said he felt "contempt" for Chelsea manager Antonio Conte as their toxic public row continues to escalate.
The Manchester United manager has traded insults with his Chelsea counterpart over the past two weeks, with their dispute becoming increasingly bitter.
"I think when a person insults another you can expect a response. Or you can expect contempt," Mourinho told reporters. "The first time he insulted me I had a response, a response that I know that touched the point where he really feels hurt.
"Then he insulted me for a second time but now I change and now (I have) contempt. And for me contempt means the end of the story."
The enmity between the two men stretches back to early last season, with Mourinho accusing Conte of humiliating him with the scale of his celebrations as United fell to a 4-0 defeat at Stamford Bridge in October 2016.
The two managers have continued to snipe at each other since then. Conte has also criticised United's spending, while Mourinho even mocked the Chelsea head coach for having a hair transplant.
However, their comments have acquired more bite lately, beginning when Mourinho implied that Conte was a "clown" for his dramatic touchline celebrations, although he later claimed he was not referring specifically to the Italian.
Conte then accused the United manager of going senile, with Mourinho responding by referring to the four-month suspension that Chelsea's manager received in 2012 for failing to report match-fixing while at Siena.
Conte, who was cleared by a court of any wrongdoing in 2016, retorted by calling Mourinho a "little man".
Meanwhile, Mourinho, whose side host Stoke in the Premier League on Monday, has refused to rule out a January move for Alexis Sanchez, describing the Arsenal forward as a "phenomenal" player.
But the United manager does not want to be drawn on his chances of beating Manchester City to a deal.
