Karren Brady celebrated West Ham's victory in the race to take over the Olympic Stadium and insisted the club's financial package will stack up even if they are relegated.
West Ham were the unanimous choice of the Olympic Park Legacy Company (OPLC) board on Friday leaving Tottenham defeated.
Brady, West Ham's vice-chairman, said: "One of the criteria we were judged against was financial and obviously our finances stack up [if we are relegated]. But we do not aim to be relegated when we come here."
One of the guarantees West Ham will have to make is to keep the running track at the stadium for the long term.
Hugh Robertson, the minister of sport and the Olympics, said the Hammers would not be permitted to scrap the track after just a few years if they were unhappy with its impact on the venue for football matches.
Robertson also insisted there had been no political pressure brought to bear on the OPLC to choose the West Ham bid over Tottenham's, which would have seen a football-only stadium without a track.
Asked if the Hammers would have to provide guarantees that they would not dispose of the track at a later date, Robertson said: "That would be a clear danger so guarantees of that sort have been sought.
"The provision of the running track is an integral part of the West Ham-Newham, UK Athletics-backed proposal and OPLC will be seeking guarantees that that will be delivered."
The decision has to be ratified by the Government and London mayor Boris Johnson, but it would be a huge surprise if they did not rubber-stamp the recommendation next week. For their part, Tottenham will keep an eye on the final verdict from ministers and the mayor.
A club statement said; "We shall continue to monitor the bid process over the coming weeks up until its final determination, whilst reviewing our position and holding discussions with our advisors."
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