Managers, agents and clubs will be concerned viewers when Panorama's investigation into football corruption is televised on Tuesday night.
Titled 'Undercover: Football's Dirty Secrets', the programme seeks to expose the game's alleged bung culture.
It is based around filmed conversations between agents and undercover journalists posing as representatives of a new agency called Dynamic Soccer.
Harry Redknapp is one manager who has been filmed by the investigation team, although the Portsmouth boss has strenuously denied any wrongdoing.
Tensions over the programme's possible revelations mounted last week when reports surfaced that Middlesbrough were one of the clubs implicated.
Boro moved quickly to issue a statement denying they were a club named by investigators and the BBC backed up their claim by confirming they were not involved.
The strength of the evidence accumulated by Panorama is largely unknown but football will be braced for an expose that could do heavy damage to the game's image.
The BBC believe they have uncovered some damning testimony that will 'rock football'.
'A record of around £300million was spent on players in the Premiership this summer alone,' reads their promotional text for the programme.
'For the first time an undercover team, which infiltrated the murky world of football for a year, will reveal the extraordinary depth of dishonesty, flagrant rule breaking and outright corruption in the nation's favourite and wealthiest sport.
'On the eve of the official Lord Stevens inquiry report into skulduggery in the beautiful game, this secret camera investigation - naming top agents, clubs and managers who are cheating their supporters - delivers evidence he won't have but which will rock football.'
Former Metropolitan police commissioner Lord Stevens, who has been asked by the Premier League to conduct the official inquiry into bungs, is due to reveal his findings on October 2.
Premier League chief executive Richard Scudamore insists the top flight's governing body will be ready to punish any parties found guilty of corruption.
'What we've always said is we'll go where the evidence leads us. I, at this stage, do not know what will be in the Lord Stevens inquiry,' he said.