Croatian club Inter Zapresic claim they have come to an agreement with Chelsea which will see young goalkeeper Matej Delac move to Stamford Bridge in 2011.
Zapresic released a statement on their website, in which they confirmed Delac will remain with them for the next two years, during which period Chelsea will pay his wages.
Zapresic also revealed that Delac, who will travel to London whenever possible to train with the Blues, will then be under contract with the Premier League side for five years.
Sporting director Branko Laljak said: "This deal will save us from bankruptcy. We are proud to have sold one of our players to one of the strongest clubs in the world."
The keeper, who turned 17 in August, broke the record for the youngest Croatian player ever called up for international duty when Slaven Bilic named him in his squad to face England earlier this month.
Chelsea have banned by FIFA from registering any new players in the next two registration periods after they were found guilty of inducing French teenager Gael Kakuta to breach his contract with Lens.