Chelsea boss Jose Mourinho has told Arsenal counterpart Arsene Wenger to focus on his own side's poor form.
Mourinho is becoming increasingly annoyed at comments from the Frenchman in the media about his Blues team.
"I think he is one of these people who is a voyeur," said the Portuguese coach. "He likes to watch other people.
"There are some guys who, when they are at home, have a big telescope to see what happens in other families. He speaks, speaks, speaks about Chelsea."
Mourinho was infuriated by Wenger's decision to comment about Chelsea's 1-1 draw at Everton last Sunday and their Carling Cup loss to Charlton on penalties in midweek.
Wenger, who is regularly asked about Chelsea in his pre-match briefings, was widely reported to have said that the Premiership champions would have lost "the big belief" after those setbacks, while he in fact said "a little bit of the belief has gone".
He also claimed it brought "a little hope" for those hoping to overhaul the Stamford Bridge outfit at the top of the table after their sensational start to the season.
But following the weekend's action, Chelsea have extended their Premiership lead over seventh-placed Arsenal to 14 points.
"It bothers me because the guy is speaking all the time. We never speak about them," Mourinho added.
"You can do it when you are top and you have a big morale.
"When you are on game number 11 and you still can't win away from home, and when you are without Thierry Henry and he can't win a game, he should be worried about them.
"He's worried about us, he's always talking about us. It's Chelsea, Chelsea, Chelsea, Chelsea.
"I might be worried if my team made a defensive mistake. I shouldn't be worried about what Arsenal did at Tottenham. They are always speaking about the other families.
"I don't know if he wants my job, I don't know. He loves Chelsea."
And with good reason, according to Mourinho, who claims in Frank Lampard is the jewel in his team's crown.
"I don't see how he can improve because for me he is the best player in the world at the moment," Mourinho said of the England international.
"I would not change him for another player because he does everything. This player is top in every game.
"His defence is incredible, he can pass over a long distance, he can pass over short distances, he's professional, he can score goals, how can he improve?"
And chief executive Peter Kenyon has revealed Arsenal are the first team in his sights on the road to building Chelsea's global brand.
Kenyon wants to take advantage of the club's London pedigree but admits they must "own" the capital before looking further afield.
"The importance of London is critical in our strategy. London today is one of the top three cities in the world. The first objective is to own London," he told The Independent.
"When we talk about internationalising the brand, the first thing we want to do is get critical mass within our own territory, then start to build internationally."
Kenyon also wants the Chelsea to rid themselves of the "rebel" tag which he fears could hamper their development off the pitch.
"Perhaps at the moment we are seen as a bit of a rebel and that's not an objective, we don't want to be seen as that," he added.
"There are several reasons for it; the Ashley Cole issue, the fact that we have had so much success so quickly and displaced some of the traditional clubs up there, the impact of Jose Mourinho and the fact that the owner is extremely wealthy.
"What I can assure you of is that we want to work within the system.
"We are far from rebels and want to do everything we can to make the industry strong because that's fundamental to any English club being strong."