Chelsea have opened talks with Sao Paulo for super teen Lucas Piazon.

The attacking midfielder is regarded as a better prospect than Kaka was at the same age.

Brazilian media sources say Chelsea have already started negotiations with the South American club and hope to finalise a move in the near future.

Juventus have also been linked with Piazon, but they have made no offers for the teenage superstar.

Chelsea look the strong favourites to clinch his signature.

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