Inter Milan boss Jose Mourinho has reignited his feud with Carlo Ancelotti, saying he is 'no friend' of the Chelsea boss.
Mourinho had a difficult relationship with a number of his fellow coaches in Serie A last season, and he exchanged words with former Milan boss Ancelotti on several occasions.
At his first press conference as Chelsea boss, Ancelotti said he did not want to be compared to Mourinho and added: "I don't know any 'Special One'."
And, when a British journalist asked Mourinho about 'his friend' Ancelotti at the Inter press conference on Friday, the Portuguese replied: "He is not my friend.
"He is a good coach with plenty of experience and could do well.
"Ancelotti says he doesn't know any 'Special One'? I don't either, but I do know a coach who won two consecutive titles with Chelsea after 50 years without winning it."
He added: "In England, they now say that he is Prince Charles, but I only know one Prince Charles - the Prince of Wales."
Ancelotti, though, has said that there is no 'war' with Mourinho and reiterated that he would like to put his own stamp on Chelsea.
"I think Mourinho is a great coach because he won a lot of trophies but it's not a war between Mourinho and me," he said.
"It's normal that he is popular in Chelsea because he won the Premier League but I also want to win it. I also want to be popular with the fans.
"I'm not sure if the period of time here will be long or short but I want the people to remember me."
Mourinho, meanwhile, refused to be drawn on whether Inter could make a fresh attempt to sign Blues duo Ricardo Carvalho and Deco.
"I don't want to talk about that," he said.
"I only speak about the players we have at the club.
"However, the transfer market will be open for a long time."