Chelsea have confirmed they have completed the signing of Brazil star Oscar from Internacional.

The 20-year-old is currently on international duty with the Brazil Olympic squad, as they prepare to go for gold at this summer's Olympics.

The former-Sao Paulo star has been linked with a move to Chelsea for the last few weeks, with a fee around the £25million mark rumoured, although the Blues have not disclosed the fee.

Oscar has played at every international age group since Under-15, and along with Neymar, Lucas Moura and Ganso, is rated as one of his country's brightest prospects.

He made his debut for the full national Brazil side in September 2011 against Argentina, and has since gone on to make a handful of appearances before winning a call-up to Mano Menezes' Olympic squad.

The Internacional star operates primilarly as a playmaker, and will find competition for places fierce at Chelsea, following the signings of Marko Marin and Eden Hazard. Chelsea star Juan Mata also plays in a similar position so Blues boss Roberto Di Matteo has a delicate balancing act on his hands to accomodate all his new talent. 

The 5ft 10in attacking midfielder can also play out wide, and Tottenham Hotspur were interested in signing the youngster at one stage. But Chelsea have beaten their rivals to the signing.

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