The Premier League-FA statement said: "A joint Premier League/FA Inquiry has reached its conclusions after considering whether the conduct of West Ham United immediately after the independent disciplinary commission's decision of 27 April 2007 amounted to further breaches of Premier League or FA rules.
"The Inquiry was instituted to consider the views expressed by the Independent Arbitral Tribunal chaired by Lord Griffiths in September 2008, which dealt with a compensation claim by Sheffield United against West Ham United, brought using the FA's arbitration process.
"The Inquiry has concluded that, on the basis of the evidence available to them, there is no prima facie case that West Ham United and/or its officials did commit any further breaches of Premier League or FA rules immediately after the independent disciplinary commission's decision."