Although the leaders only beat Antonio Conte's side 1-0, they dominated the entire contest and knocked the ball around easily in the second half to secure the three points.
However, Dunphy felt that the 'keep-ball' strategy was done by the City players to embarrass their opponents, a tactic which Dunphy disagreed with.
"They [Chelsea] go to Manchester and get humiliated really," Dunphy said on Game On on 2FM.
"It is humiliating for a player at any level, to have the keep-ball thing. I didn't like what City were doing at times yesterday. I thought they were almost making a statement of passing the ball to each other and not really giving a damn. There was a contempt in their body language. Perhaps I'm wrong but I don't like that. I don't like to see good players humiliated.
"I said it to John Giles last night and he said 'you are bloody crazy, go and see a doctor'."