Chelsea have agreed a fee of 53 million pounds plus 5 million pounds in add-ons for Southampton midfielder Romeo Lavia.
The 19-year-old, who has one senior cap for Belgium, is yet to have a medical before the move to Stamford Bridge.
Lavia made 34 appearances in all competitions last season, but could not stop Saints being relegated from the Premier League.
Meanwhile Liverpool also bid for Lavia and he is set to be the second target they missed out on to Chelsea after Moises Caicedo.