Footballers from around the world have been lured to England by the promise of the chance to impress the coaching staffs of Liverpool, Chelsea and Manchester City.
They reportedly hand over as much as £3,000 to "agents" posing as scouts or club employees in exchange for a week's training at the Premier League clubs.
But they're left to fend for themselves, with the clubs unaware of any such deal completed on their behalf.
The Daily Mail report claims footballers from Spain, Africa and Australia have flown to England in recent months to take part in the trials.
They pay £500 to an "agent" to set up a meeting with a club official and to cover the cost of a travel visa, while another £2,500 is required to pay for medical insurance and travel expenses.
But when they turn up at the airport, there is no one there to meet them.
The International Centre for Sports Security, an organisation based in Qatar, is investigating the issue and has already made contact with the Premier League.
As well as Chelsea, Liverpool and Manchester City, ICSS says Sunderland, Stoke, LA Galaxy, Bursaspor and Hull City have also been name-checked by fake agents as a way to trick young players into parting with their cash.
An ICSS statement said: "If players have any doubts they should contact the relevant clubs, check their official websites for contact details and phone them direct. Clubs will not contact you via Facebook, Linked In, Twitter. They are not likely to use Hotmail, Gmail or Yahoo email accounts. If they contact you it will only be by using their official email."
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