Chelsea target Barcelona youngsters

Chelsea are reportedly monitoring a quartet of young Barcelona stars ahead of next summer's transfer market.

Chelsea technical director Michael Emenalo has spoken to Nou Camp boss Pep Guardiola about 19-year-old midfielder Sergio Roberto, according to The Mirror.

Andre Villas-Boas is also keen on Martin Montoya, Marc Bartra and Rafa Alcantara, who are all out of contract next summer.

Chelsea signed 20-year-old midfielder Oriol Romeu from Barcelona this summer.