There are currently four bidders hoping to take over the venue but West Ham are the favourites.
But at his first meeting chairing the organisation deciding the future of the Olympic Park, the London Mayor told London Tonight that he is not "wedded to football".
Have West Ham's chances of moving into the Olympic Stadium been dealt a blow by Boris Johnson?
The details now from our political correspondent Simon Harris.
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Save Your Uber in London was set up after it was announced the firm would not have its licence renewed when it expires next week.
Survivors are still traumatised, homeless and want answers.