The future of London's Olympic Stadium was plunged into uncertainty yesterday after the collapse of a deal which would have seen Championship side West Ham move to the venue.

Britain's sports minister Hugh Robertson confirmed the deal regarding the venue's post-2012 future had unravelled amid mounting concerns over the legal challenges facing the venture.

Tottenham and Leyton Orient had both challenged the Hammers' move to the venue while an anonymous complaint to the European Commission had fuelled concerns the stadium may lay empty for years as legal battles proceeded.

The stadium will now remain in public ownership before being leased to a tenant following a new tender process.