Leicester City manager Craig Shakespeare said he "has never had any falling-out" with former manager Claudio Ranieri.
Ranieri was sacked by the Premier League champions in February and said on Monday night that "someone behind" him may have been working against him.
Shakespeare said: "We have never had any arguments or hard feelings.
"Free speech is there for everybody. I don't have any problem with that. I have a clear conscience."
Speaking on Sky Sports on Monday, Ranieri hinted at problems with somebody at Leicester, but refused to name anyone, leaving Shakespeare to face questions in the build-up to Wednesday's Champions League quarter-final with Atletico Madrid.