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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Thousands more partygoers headed to the second and final day of the Notting Hill Carnival.
London developers have got the green light to build a 25m 'sky pool' between two buildings in Nine Elms.
A top cop has been spotted joining in with rank and file police officers dancing at Notting Hill Carnival.