Chelsea's teenage winger Samuel Illing-Junior is being watched by a host of Europe's top clubs, including Bayern Munich, Paris Saint-Germain, Ajax and Schalke.
The Blues are keen to keep hold of Illing-Junior but they face losing the 16-year-old for a small compensation fee as his youth contract expires soon and professional terms have not been signed.
PSG and Bayern have had some success in signing youth players from Chelsea, with Marcin Bulka and Jamal Musiala both having left in similar circumstances, while Schalke and Ajax have also been sending scouts to academy games at Cobham to target talent.