'Yes he was very passionate, intense and aggressive but he was only very complimentary and positive to me, ' the Saints man told his followers on Twitter.
But the City boss has played down any bad blood between the pair and simply revealed he was complimenting the 23-year-old.
Guardiola said after the game that he was telling Redmond "how good a player he is". You can agree or not, but if I'm explaining what happened and the people don't believe me then let's cancel our press conferences and just play the games. What I said is what I said and what Nathan said in his statement.
"Losing the game the way we did in the last kick of the game after working so hard for 90-plus minutes, I was very disappointed".
Guardiola insisted that his aggression was as a result of Southampton's time-wasting.
Raheem Sterling scored a 96th-minute victor as City defeated Saints 2-1 and, bizarrely, after celebrating the goal, Guardiola marched over to an unsuspecting Redmond and proceeded to lay into the 23 year-old, even tapping his hand on the player's chest. All the managers want to help their players because if they play bad we'll be sacked.
Guardiola said he would "never judge the way opponents play against one of my teams".
He added: "I've faced this kind of team a lot in my career and I have to think how to beat them".
Cityâs win over Southampton came courtesy of a 96th minute goal from Sterling, the third time in eight days the England striker had scored a late decider.
Guardiola has until December 4 to respond to the English FA's request.
"I want to make it absolutely clear Pep Guardiola did not say what the Sun is falsely claiming in this story", Redmond said.