Chelsea have been stunned by the form of Conor Gallagher at Charlton.
The midfielder was shipped out on loan after featuring for the Blues over preseason.
He has starred for the Addicks since then, having added four goals and one assist to his name.
The Sun says youth loan coach Claude Makelele has been making regular visits to watch the 19-year-old in action.
Manager Lee Bowyer has confirmed Makelele's presence at the Valley and believes he is one to watch for the future.