Valencia Plaza reports that Martinez is keen to bring in Guardado in a move to strengthen his attack.
Porto were close to signing the Mexican international during transfer deadline day.
Martinez signed the likes of James McCarthy, Romelu Lukaku and Gareth Barry near the end of the transfer window, but the Toffees are ready to bring in more players in January.
What is your opinion? Feel free to discuss the article under. You have to comment by using your Facebook profile. Be fair and have respect for other people and opinions!
Summer 2016 is set to be a very exciting time for football fans, as this is when the long awaited Euro 2016 tournament kicks off.
Since Guus Hiddink arrived at the helm, Chelsea have improved considerably after a tricky start to the campaign.