Chelsea has been warned that their stadium is 'too small' by Sadiq Khan and that they should look at their London rivals with 'envy'.
But the mayor of London has invited the Premier League giants for discussions about the opening of a new stadium.
The owners of Chelsea are apparently divided on the re -developing of Stamford Bridge or Building on a new site to Earl's Court, who would require consultation with the mayor's office.
The blues have the 10th biggest capacity in the English club football at 40,343, lower than Championship Sunderland.
And despite the fact that the bridge has witnessed many historic nights over the years, his capacity faded compared to that of colleague -London clubs West Ham, Tottenham and Arsenal, behind with around 20,000.
“My message to Chelsea came to speak to us in relation to what you want to do,” Khan told The Times.
'Chelsea is the victim of their success and Stamford Bridge is now too small for them. After all, this is a team that has won the Champions League twice.
'We work closely with all seven of our Premier League clubs, but I am sure that Chelsea looks with some envy in the stadiums that some of their rivals have in London.
'We really want to ensure that Chelsea, as we are with all our clubs, continue to bloom and bloom, so we are open to talk to Chelsea about which plans they have.
“They have not approached us at the moment. But we are here. '
Khan revealed that he wants London to offer the 2040 Olympic Games.
What to do with the stadium is a debate that could splinter the ownership of Chelsea.
In March, Todd Boehly seemed to argue for a new multifunctional and suggested Chelsea's ownership group to be tailored to the project.
Much has been written about Boehly's relationship with his fellow owners Clearlake Capital, led by Behdad Eghbali and Jose Feliciano, including talking about one party that may buy the other.
When Boehly interviewed their differences by Bloomberg, Boehly said: 'We have to think about what we are trying to achieve in the long term.
'We have a big chance for stadium development that we have to work out.
'I think that will be where we are aligned or in the end we decide to go in different ways. What has been written and spoken about is much more “drama” than what actually happens. '
Boehly continued his plans for Stamford Bridge and continued: 'Stadium development is definitely a theme. You are going to see the NBA go to Europe, they need stadiums, they need arenas.
'You know, sporty infrastructure. We are just at the front of the sporty golf and sports infrastructure will be a big thing.
'We have 16 or 20 years to find out, you know, of course, in London, it is really complex. It is not as if we are building something in the middle of a rural environment.
'We have many constituencies to ensure that we care. Certainly, the Chelsea Fanbase is one. In the long term we will build something new and we will find out. '
The redevelopment of the stadium where it is currently can cost £ 2 billion and they have to play elsewhere for four years. It has been their home since 1905.
Boehly is determined to transform the stadium into a world -class location, which means that none of the current stands are retained.
Regarding the Earls Court site, Chelsea, the Guardian was reported last year to have spoken with Transport For London (TFL), one of the partners who takes care of the site, and Real Estate Developers Delancey.
However, the Earls Court Development Committee wants a site for mixed use without a football stadium.
Hammersmith and Fulham Council and the Royal Borough van Kensington and Chelsea Council are expected to make a decision this year about the future of the site.