Manchester United are reportedly being held to ransom by cyber criminals who hacked the club's computer systems.
United have brought in a team of technical experts to contain the potentially 'disastrous' attack that was launched more than a week ago, reports the Daily Mail.
But it's understood the hackers still have United in their grip after the National Cyber Security Centre on Thursday night confirmed they are helping the club to resolve the crisis.
It said: "The NCSC is aware of an incident affecting Manchester United Football Club and we are working with the organisation and partners to understand impact."
The embarrassing lapse of security at one of the world's biggest sports clubs is believed to be far more serious than first feared.
United's network has been infected by ransomware – a computer virus - and they now face the option of having to pay up or risk seeing highly sensitive information about the club and its stars leaked into the public domain.
It's unclear who the criminals are or how much they want, but the NCSC revealed that in the last year an EFL club were hit with a £5m demand and the biggest single loss to a sports organisation from cyber crime was £4m.