Arsenal and Liverpool are on red alert with Gonzalo Higuain set to leave Napoli at the end of the season.
The former Real Madrid man continues to insist he is happy in Serie A but reports in Italy suggest the Naples outfit will now look to cash in over the summer.
Napoli have a history of selling their prize assets and reinvesting quickly, bringing Higuain in as a replacement for Edinson Cavani when the Uruguayan was sold to Paris Saint-Germain.
And Rafa Benitez could look to repeat the trick by flogging Higuain and bringing in Colombian ace Jackson Martinez.
Yesterday Martinez's agent Henrique Pompeo told AreaNapoli.it: "His desire is clear: he wants to play in Serie A.
"He has his heart set on Italy and if he were to leave Porto then Serie A would be his first choice.
"It is very unlikely Porto would let him leave in January, because they still need him for the Champions League and to chase Benfica in the table, so consequently Martinez will only move at the end of the season.
"He'd be happy at Napoli because we are talking about a very special club, but he'd be happy with Roma, Milan or Juventus too. They are all great teams."
And it now remains to be seen whether Arsenal or Liverpool are willing to meet Napoli's asking price to bolster their striking options ahead of next season.