European Cup winning midfielder Graeme Souness has told The Sunday Times that there could be a power shift taking place in London.
He believes Tottenham and West Ham are on their way to becoming the biggest in the capital, overtaking Arsenal and Chelsea.
Both teams are exceeding expectations this season, sitting in second and fifth position.
He said: "Arsenal and Chelsea have been the dominant London teams during the Premier League years, but at last there’s a change happening in the capital.
"Spurs have a strong group of players who, given their age, should only get better and it’s a similar story with this West Ham team. Leicester City prove that anything is possible."
Tottenham and West Ham are making great strides, and the challenge is to maintain this level of performance in seasons to come.
Both clubs are blessed with young talent in their academy, with the Hammers having potential stars like Martin Samuelsen and Josh Cullen currently impressing out on loan.
Even more importantly, the two teams are set to move into new stadiums which can seat more than 60,000 supporters, boosting their income, to allow them greater chance to be competitive on the pitch.
Arsenal and Chelsea however have the resources that mean they will not go away quietly, and the Blues especially will be determined to bounce back after a disappointing season which is now destined to end trophyless.