Jackson Martinez
Martinez will likely leave Porto this summer, agent predicts.Reuters

Reported Arsenal and Chelsea target Jackson Martinez is set to be at the centre of another summer of speculation after his agent revealed he expects the striker to leave Porto in the coming months.

The Colombian international was intensely linked with the Premier League duo last summer but eventually opted to remain in Portugal for another season.

With Diego Costa seemingly set to fill the void up front at Stamford Bridge this summer Arsene Wenger is expected pursue an established forward for his side after failed pursuits of Gonzalo Higuain and Luis Suarez last summer.

Martinez, who has previously revealed his admiration for the Gunners and their approach to the game, would now appear ready to leave for a bigger club and his agent has hinted enquiries have already been made.

"Some clubs are interested in knowing the details about his situation and opening negotiations," Martinez's agent Luis Henrique Pompey was quoted as saying by Portuguese daily A Bola.

"If it is good for all parties, I view it as normal that it will end in a sale."

Martinez, as previously revealed by his agent, has a release clause of £34m written into his contract that runs until 2016.

Should his Premier League admirers make their interest formal in the summer months then they could face competition from Napoli. Rafa Benitez's side strengthened their forward options with the signings of Gonzalo Higuain and Duvan Zapata last summer but the club are keen to add to that in a bid to close the gap on Juventus, who recently lifted a third successive scudetto.

Martinez would consider a move to Naples having discussed it with fellow countryman Juan Camilo Zuniga, or so his agent suggested last month.

"Jackson would like to join a great club like Napoli. He even talked to Zuniga about it, and would form a great scoring duo together with Higuain," the Daily Express quoted his agent as saying.

"But the only way to purchase him is by paying the 40 million euros (£32m) set for his release clause, then it will be over to Porto."