Boris Johnson has refused to comment on reports that West Ham have reached an agreement with City Hall, on the share-out of any profits if the club were to be sold after moving into the stadium.
West Ham were named preferred bidders for the Olympic Stadium in December last year - but the parties have since been hammering out the details of any potential deal.
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From Friday, Viagogo must publish the names and addresses of touts, those who sell more than 100 tickets a year via the site, to consumers.
Researchers at the Royal Botanic Gardens, Kew, have found that 75 of the world's 124 wild coffee species are under threat.
Molly Morgan fell to the ground, hitting her head and died in hospital the following day.