Arsenal target Jackson Martinez has added fuel to rumours that he will leave Porto in the near future, by rejecting an improved contract offer, according to Spanish newspaper Marca.
Martinez, who was also linked with Chelsea and Manchester United over the course of the summer, netted 33 goals in 37 games for Porto last year, and has subsequently been targeted by a number of top European outfits.
His current club are desperately attempting to convince him to remain in Portugal, but as of yet they remain some way off a deal being concluded.
Porto reportedly want Jackson to sign a new five-year-contract that would increase his minimum fee buyout clause from €40million to €60million, but the forward knows this would practically rule out any chance of him moving clubs anytime soon.
At 27 Martinez is looking to make a big move sooner rather than later, and it is thought that he is stalling on any new deal at Porto so that he can move in either January or at the end of the year.
It's believed that Porto president Pinto da Costa is prepared to let the Columbian leave when the current season ends, but is doing all he can to convince Martinez that he shouldn't move.