Jose Mourinho and Romelu Lukaku continue to wage a war of words through the media as their relationship appears to have suffered irreparable damage.
Lukaku said he hasn't spoken to anyone at Chelsea in a couple of months in a candid interview with the BBC this week.
The 20-year-old explained his reasons for leaving Chelsea on loan in the summer.
"I had to analyse what the best was for me. Imagine if I was playing Chelsea now, I would play maybe five games maybe score one or two goals.
"Look now I'm playing for Everton, I've played eight games and scored seven goals. Everybody in England is talking about me about my performances and as a player I'm improving, I'm having that certain consistency in my game."
Mourinho responded to the Belgian striker's comments on Friday.
"Romelu likes to speak. He's a young boy. But the only thing that he didn't say is why he went to Everton on loan. My last contact with him was to tell him exactly that. 'Why you never say why you are not here?'"
The Irish Examiner's Miguel Delaney reports his sources claim Lukaku demanded a transfer after missing a penalty in the Super Cup versus Bayern Munich.
The incident confirmed longstanding concerns regarding Lukaku and his ability to handle the pressure of a title chase for some of the higher ups at Chelsea, according to Delaney. The Blues also refused to sanction an outright sale of Lukaku to Everton.