Leyton Orient have released a statement expressing a "sense of injustice" following the High Court's decision to deny them permission to challenge the tenancy of the Olympic Stadium.
The League One outfit accused the London Legacy Development Corporation of not fully considering their bid to share the ground with the Hammers, who were given sole tenancy of the ground earlier this year.
Lawyers representing the club had a hearing at the High Court today, but Mr Justice Lewis rejected their bid to review the corporation's decision.
A statement on the club's official website said: "We feel a real sense of injustice at today's decision. [West Ham co-chairman] Karren Brady told the House of Lords only a few weeks ago that West Ham United had no objection to a ground share with Leyton Orient, but West Ham United's barrister today claimed that to ground share would adversely affect the club because the Olympic Stadium is "part of the brand".
"Our real concern is the lack of transparency that has been shown throughout the process by a public body. It is deeply disappointing that both the Court and the LLDC have made decisions based only on financial considerations, when the purpose of the Stadium's legacy was regeneration of the area with a community focus.
"We believe that the LLDC exercised its discretion to favour West Ham United, no doubt under pressure from West Ham United to make them sole football tenants for the benefit of their 'brand'."
Orient have also confirmed that they will "contemplate how to proceed in the best interests of the club" following the ruling.