The agent of highly-rated Porto forward Hulk insists he has not spoken to anyone from Chelsea about the possibility of a January transfer.

The 25-year-old Brazilian, who is under contract at Estadio do Dragao until 2016, has been heavily linked with a move to west London, but Teodoro Fonseca expects his client to remain in Portugal.

Blues boss Andre Villas-Boas is a known admirer of Hulk's, having worked with him during Porto's treble-winning campaign last season, and the South American striker has stated he would be open to a Stamford Bridge switch.

However, despite continued speculation, Fonseca is adamant that Hulk will not leave Porto this transfer window, and says Chelsea have made no contact with him.

"The player isn't preparing to leave Porto because he is happy at the club," he told O Jogo. "I have not spoken to anybody from Chelsea. Villas-Boas knows the footballer and Porto well.

"Every day I receive calls from agents but the only serious offers we have received were three last season, offering him a better salary than at Porto.

"But Hulk rejected them because of sporting motives. He is not just interested in money but challenges on the pitch."

Big-spending sides Paris St Germain and Anzhi Makhachkala are also thought to be chasing Hulk, and could rival Chelsea for his sought-after signature, but the £83.5million buy-out clause in his current contract is thought to be keeping any serious bids at bay.

"I admit Hulk can't stay at Porto forever," Fonseca added. "That is football and at the moment the clause in his deal is decisive."

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