Chelsea have announced the signing of Palmeiras teen Estevao Willian.
The Blues say the 17 year-old will officially move to London next summer.
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The deal could rise to £51m, so making Estevao's transfer the richest for a teen in Brazilian history.
Estevao passed his medical last week and has signed a long-term deal with Chelsea.
He joins fellow Brazilians Andrey Santos, Deivid Washington and Angelo Gabriel at Stamford Bridge.