Ranieri shrugged: "I don't want to speak about this, every match is different. We must respect the referee every time.
"I said nothing to him at halftime. I just wanted to show to our fans, to my players, that I was there. There was nothing wrong."
The sending-off set the tone for five yellow cards to be shown to Leicester players in seven minutes before the break and, with a sixth brandished soon after halftime, Leicester are in line for an FA fine.
Ranieri had to be restrained by Leicester goalkeeper Kasper Schmeichel.
"There were so many yellow cards and in my opinion it was just a normal battle in the Premier League," said Ranieri.
Not even he, however, could have imagined the final 15 minutes during which goals from Leonardo Ulloa and Daniel Amartey earned Leicester their second away point all season.